







Filling holes with stone dust 
20200730 

Zach pose la question : I’m looking for amount of stone dust needed for thirteen holes with
a 3ft depth and 12in diameter with a 4x4 post. I would need the
measurement in KG. Harley Weston lui répond. 





Filling a hole 
20190801 

Jackie pose la question : Filling a hole 25ft round 3ft deep how much dirt is needed? Penny Nom lui répond. 





A tube through a board at 45 degrees 
20190615 

Guy pose la question : I need to insert a tube 5/8" diameter into a board at a 45 degree angle. What size hole must I drill for the tube to fit snugly? Harley Weston lui répond. 





A repeating decimal divided by a whole number 
20190501 

Emily pose la question : How do you divide repeating decimals by whole numbers? Penny Nom lui répond. 





A circle with a circular hole 
20190311 

Sue pose la question : My little one is wondering if a circle with a circular hole could be described as an irregular semicircle.
As it has 2 sides but is not the standard shape. Could you share your thoughts ?? Penny Nom lui répond. 





Three consecutive whole numbers 
20180622 

whaha pose la question : the sum of three consecutive whole numbers divided by 4 is equal to 6. find the numbers. Penny Nom lui répond. 





Gauss' Addition of whole numbers. 
20180430 

Brad pose la question : I found this on your site. Question: what is the sum of the first 100 whole numbers??
Is there a different formula if the numbers begin at a number other than one? For example
What is the series I want to add is goes from 7  53? Harley Weston lui répond. 





The wholesale price given the retail price and the markup 
20180207 

Matthew pose la question : Retail $99
Markup is 80%
What is the equation to find the original (wholesale) price (55)?
thanks Penny Nom lui répond. 





The number of truckloads to fill a hole 
20170618 

Jennifer pose la question : How many full size truck bed pickup loads do in need to get to fill a hole that is 18' x 30' that is 4" deep? Penny Nom lui répond. 





A square peg in a round hole 
20170529 

bill pose la question : bill wants to put a 2 foot square peg into a round hole What must be the circumference of the hole? Penny Nom lui répond. 





Filling three holes with stones 
20140820 

mark pose la question : how many tonnes of hardcore/crushed stone would it take to fill
1 hole 9ft diameter 5ft deep
and 2 holes both 3ft diameter and 5ft deep Penny Nom lui répond. 





Covering a 12 inch by 12 inch square hole 
20140702 

Patricia pose la question : I am putting in a new bathroom fan. I am wondering if a new light with a 15 inch diameter will cover the existing square hole which is 12 by 12 inches? If the existing hole is 11 1/2 by 11 1/2 inches?
Also, if the 15 inch diameter does not cover the 12 by 12 hole, what size diameter would?
Thank you. Penny Nom lui répond. 





Three consecutive whole numbers 
20140313 

Abhishek pose la question : Three consecutive whole numbers are such that if they be divided by 5,3 and 4 respectively, the sum of the quotient is 40. What are the numbers? Chris Fisher lui répond. 





A Holeinone on all four par 3's 
20130904 

Robert pose la question : There are four (4) par 3's at a specific 18 hole course.
One member has the honor of making a Holeinone on all four par 3's.
It has taken him 8 years to do it!
How does one go about computing the odds of this TREMENDOUS accomplishment?
Respectfully,
Robert laffal Victoria West lui répond. 





Dirt to fill a pool 
20130713 

Neil pose la question : I had a 24 foot diameter pool. The perimeter of it was at ground
level. The pool sloped 1 foot deeper to the middle. In other
words "a 1 ft. dish. How many cubic yards of dirt do I need to
fill this hole? Penny Nom lui répond. 





Fence post holes 
20120719 

Gerry pose la question : Hello, I'm digging 30 8" dia holes, 5 ft deep for fence posts that are 4"x 4" Can you please help me figure out how much stone dust I should order for all 30 holes. Thanks Penny Nom lui répond. 





Two whole numbers 
20110511 

yolanda pose la question : The sum of two whole numbers is 12.If the sum of the squares of those numbers is 74,what are the two numbers? Penny Nom lui répond. 





Odds and evens in an n by n+1 table 
20100121 

Shankar pose la question : The boxes of an n * (n+1) table ( n rows and n+1 columns) are filled with integers.
Prove that one can cross out several columns ( not all of them !) so that after this operation
all the sums of the numbers in each row will be even. Robert Dawson lui répond. 





Friends in a class 
20090914 

pran pose la question : it is known that among any group of three students in a class two of them are friends. the total number of students is 25. prove that there is a student who has at least 12 friends Claude Tardif lui répond. 





How deep is the hole? 
20090825 

Scott pose la question : If I have a hole three foot in circumference that runs at a 15degree angle from the surface and continues for a length of 100 feet, how deep would the hole be at 100 feet? Penny Nom lui répond. 





Filling a hole 
20090714 

BARRY pose la question : I HAVE AN AREA THAT i NEED TO FILL WITH DIRT AND AM TRYING TO FIGURE OUT THE CU. YDS NEEDED. tHEY CIRCUMFRANCE OF THE HOLE IS 28' ROUND AND SLOPES FROM 2.5 FEET AT ONE END TO 0 ' AT THE OTHER. OVERALL THE HOLE IS 30' LONG BY 30' WIDE . THE SLOPE RANGES FROM 2.5 ' TO APPROX 4" Harley Weston lui répond. 





Find the lengths, and explain in a 'let statement' 
20071220 

Cordilla pose la question : the length of the sides of a triangle are 3 consecutive whole numbers. The perimeter of the triangle is 102 meters. Find the lengths, and explain in a' let statement'. Stephen La Rocque and Harley Weston lui répond. 





x^2 + x^3 = n^2 
20071114 

Rapin pose la question : x and n are the whole number and less than 100 , x^2 + x^3 = n^2,
please help to solve this equation. Penny Nom lui répond. 





Whole numbers and improper fractions 
20071113 

Jennifer pose la question : I would like to know how you convert whole numbers into improper fractions Melanie Tyrer lui répond. 





Dirt in a sloped round hole 
20070803 

Ken pose la question : How much dirt do I need to fill a ground hole 20 ft in dia. with a sloping floor that has a ht. of 5" on one side and 12" on the other side? Stephen La Rocque lui répond. 





The size of a lot 
20070613 

Larry pose la question : This is driving me crazy, I know i learned this in college but that was so many years ago haha. I am trying to determine how many acres
my property is. Unfortunately everywhere i look is like another language to me when seeing these formulas. My property is square shaped
so starting from one side and just working around the dimensions are: 114 feet x 95.88 feet x 100 feet x 91.91 feet. Penny Nom lui répond. 





Percentage increase and decrease 
20070613 

Anna pose la question : I just want to if the following formula is used for the computation of a PERCENTAGE DECREASE:
Old Value  New Value/ Old Value x 100%
My immediate superior is under the impression that the said formula works ONLY for the computation of a percentage INCREASE. He believes that the formula for a percentage DECREASE:
Old Value  New Value/ NEW Value x 100%
On this score, I want to know the correct formula for the computation of percentage decrease. Thank you so much.
Penny Nom lui répond. 





A 5 digit key 
20070531 

Michael pose la question : I have a 5 digit key pad lock on my truck.
I want to print out all of the combinations to try.
pad one=0 pad two =1 pad three=2 pad four=3 pad five =4.
can you help me find and print all combinations? Harley Weston lui répond. 





Water tank volume 
20070529 

Cecelia pose la question : I HAVE A SEMI CIRCULAR TANK AGAINST A WALL MEASURING 6'10" ACROSS THE WIDEST PART AND 3' FROM THE WALL TO THE FRONT OF THE TANK. THE DEPTH IS 14". PLEASE HELP ME TO CALCULATE THE VOLUME OF WATER IN THE TANK. Stephen La Rocque lui répond. 





How many different ways can she purchase candy? 
20070418 

fathia pose la question : Stephanie can buy lemon candies for 3 cents each and chocolate candies
for 5 cents each. Stephanie has 64 cents to spend. How many different
ways can she purchase candy if she wants to spend all her money? Stephen La Rocque lui répond. 





Drilling holes in a cube 
20061212 

Liz pose la question : What is the volume of the solid remaining if a unit cube has a hole drilled thru one face to the opposite side and the hole that is drilled is a cylinder of unit diameter. Then the cube is rotated and an identical hole is drilled from an untouched face to the opposite side. Then the cube is rotated and an identical hole is drilled between the last two untouched faces. This will result in the cube vertices and the remaining volume of the cube falling into 8 parts. What is the total volume of these 8 parts. How is this volume calculated? Penny Nom lui répond. 





What is the sum of the first 100 whole numbers? 
20060531 

Jo pose la question : what is the sum of the first 100 whole numbers? Natasha Glydon, Paul Betts and Penny Nom lui répond. 





What is the radius of the sphere? 
20060517 

Jimmy pose la question : The surface area and volume of a sphere are both equal to the product of 4digit whole numbers and pi. What is the radius of the sphere? Stephen La Rocque lui répond. 





Improper fractions 
20051021 

Joe pose la question : Is a whole number an improper fraction. For example, is 4 an improper fraction? Is 4 an improper fraction? Is 4 the simplest form for 20/5? Are 4 and 20/5 equivalent fractions? Penny Nom lui répond. 





Whole numbers 
20051010 

Kirk pose la question : Can the sum of two or more whole numbers be less than any of those numbers? Penny Nom lui répond. 





How much loam to fill a hole? 
20040619 

Harry pose la question : Can you tell me how much loam I would need to fill a hole 15 feet in dia. x 6 inches deep. Penny Nom lui répond. 





Divisibility by 2 or 5 or both 
20031030 

Abdu pose la question : How many positive integers less than 1,001 are divisible by either 2 or 5 or both? Penny Nom lui répond. 





Friends and enemies 
20030324 

Becky pose la question :
Consider a room that contains six people. Any two people are either friends of each other, or they are enemies. A. Argue why there are three people, all who are friends, or there are at least three people, all who are enemies
B. Rephrase the situation using graph terminology, using all of these terms correctly: vertex, edge, graph, complement, clique, independent set, and bipartite. Penny Nom lui répond. 





Subsets of the Real Number System 
20020907 

Christine pose la question : In looking for a French equivalent of the word "integer", I found that the word seems not to actually exist in French, and that Canadian schools use the term "natural number" to describe what we have been trained to call "whole numbers," while using the term "whole number" to describe what we have been trained to call "integers." Claude Tardif lui répond. 





20 men dig 40 holes in 60 days 
20020724 

Lindsey pose la question : 20 men dig 40 holes in 60 days. So, 10 men can dig 10 holes in how many days? Penny Nom lui répond. 





Mixed numbers, whole numbers and improper fractions which are less than 2. 
20020303 

Dawn pose la question : Change each mixed number to a whole number and an improper fraction which is less than 2. 3 1/2 = 2 / Penny Nom lui répond. 





The amount of gravel needed to fill a hole 
20011006 

Rhett pose la question : My name is Rhett and my problem is...I am a contractor and I am having problems determining the amount of gravel(in tonnage) needed to fill this hole,the measurements are 60' in length,22' in width,and 14' in height....the problem is that it is not a usual box shaped hole or in this case a rectangle shaped hole,but more of a triangular shaped hole.I refer to the triangular shape as the interior shape of the crater not the exterior,which is shaped like the above dimensions.If you could help it would be greatly appreciated.P.s.This was a retaining wall project,built by myself, in front of a sloped end of a yard,so if you could imagine a 14" high hill with a landslide looking face,then build in your mind a three sided rectangle in front of it using the hill side that slopes as the fourth side of the rectangle,then you may be able to imagine what I mean as a triangular shaped interior of the hole. Penny Nom lui répond. 





Rounding 
20000914 

MaryAnn pose la question : How many whole numbers rounded to the hundreds place, round to 400? Can you also explain why? Penny Nom lui répond. 





Natural numbers 
20000412 

Sara pose la question : What is a natural number??? Penny Nom lui répond. 





Filling a hole 
20000401 

John McNeill pose la question : I have an area 20 feet long and 12 feet wide It starts out at a depth of 4 inches and ends up at 0 inches. How much sand do I need to fill the excavation. Penny Nom lui répond. 





Whole numbers 
19991202 

Patty pose la question : I'm in a 5th grade class, please explaine what whole numbers are..... Penny Nom lui répond. 

