Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym and Maburo,

The solution #5136 is correct, bobbym! Good work!

The solutions #5135 and #5136 are correct, Maburo! Marvelous!

#5137. A room is 15 feet long and 12 feet broad. A mat has to be placed on the floor of this room leaving 18 inches space from the walls. What will be the cost of the mat at the rate of $3.50 per square feet?

#5138. 2 meters broad pathway is to be constructed around a rectangular plot on the inside. The area of the plot is 96 square meters. The rate of construction is $50 per square meter. Find the total cost of the construction.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi Maburo,

The Solution #5137 is correct. Remarkable, Maburo!

The solution #5138, as you pointed out, is arbitrary. I shall wait for bobbym's solution #5137.

*bobbym, please ignore problem #5138. Please answer #5137 alone.*

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi Maburo and bobbym,

The solution #5137 is correct. Marvelous, Maburo and bobbym!

#5139. Within a rectangular garden 10 meters wide and 20 meters long, we wish to pave a walk around the borders of uniform width so as to leave an area of 96 square meters for flowers. How wide should the walk be?

#5140. A rectangular lawn 55 meters by 35 meters has two roads each 4 meters wide running in the middle of it, one parallel to length and the other parallel to breadth. Find the cost of gravelling the roads at 75 cents per square meter.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solutions #5139 and #5140 are correct. Excellent!

#5141. A rectangular park 60 meters long and 40 meters wide has two concrete crossroads running in the middle of he park and the rest of the park has been used as a lawn. If the area of the lawn is 2109 square meters, then what is the width of the road?

#5142. A housing society has been allotted a square piee of land measuring 2550.25 square meters. What is the side of the plot?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym and Maburo,

The solutions #5141 and #5142 are correct. Excellent, bobbym and Maburo!

#5143. The cost of cultivating a square field at the rate of $135 per hectare is $1215. What would be the cost of putting a fence around it at the rate of 75 cents per meter?

#5144. The perimeters of five squares are 24 centimeters, 32 centimeters, 40 centimeters, 76 centimeters, and 80 centimeters respectively. Find the perimeter of another square equal in area to the sum of the areas of these squares.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi Maburo and bobbym,

The solutions #5143 and #5144 are both correct. Splendid performance!

#5145. What is the number of marble slabs of size 20 centimeters x 30 centimeters required to pave the floor of a square room of side 3 meters?

#5146. 50 square stone slabs of equal size were needed to cover a floor area of 72 square meters. What is the length of each stone slab?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solution #5146 is correct. Neat job!

#5147. What is the least number of square tiles required to pave the floor of a room 15 meters 17 centimeters long and 9 meters 2 centimeters broad?

#5148. A rectangular room can be partitioned into two square rooms by a partition 7 meters long. What is the area of the rectangular room in square meters?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

#5149. The perimeter of a square is 48 centimeters. The area of a rectangle is 4 square centimeters less than the area of the square. If the length of the rectangle is 14 centimeters, then find its perimeter.

#5150. The area of a rectangle is thrice that of a square. If the length of the rectangle is 40 centimeters and its breadth is 1.5 times that of the side of the square, then what is the side of the square?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solutions #5149 and #5150 are correct. Stupendous!

#5151. If the perimeter of a rectangle and square, each is equal to 80 centimeters and the difference of their areas is 100 square centimeters, find the sides of the rectangle.

#5152. The cost of fencing a square field @ $20 per meter is $10,800. How much will it cost to lay a three meter wide pavement along the fencing inside the field @ $50 per square meter?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solution #5151 is correct. Excellent!

#5153. A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?

#5154. A man walking at the speed of 4 kilometers per hour crosses a square field diagonally in 3 minutes. What is the area of the field?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solution #5153 is correct. Excellent, bobbym!

#5155. If the length of the diagonal of a square is 20 centimeters, then what should its perimeter be?

#5156. The area of a square field is 69696 square centimeters. What would its diagonal be equal to?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,658

Hi ganesh;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,994

Hi bobbym,

The solutions #5155 and #5156 are correct. Marvelous!

#5157. What is the ratio of the area of a square to that of the square drawn on its diagonal?

#5158. What is the ratio of the areas of two squares, one having its diagonal double than the other?

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline