Math Is Fun Forum

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi bobbym,

The solution #5107 is correct. Excellent!

Regarding #5108, I made an omission in the problem. Regretted! The corrected problem:

The length of a rectangular plot is 20 meters more than its breadth. If the cost of fencing the plot at the rate of $26.50 per meter is $5300, what is the length of the plot in meters?

#5109. The breadth of a rectangular field is 60% of its length. If the perimeter of the field is 800 meters, what is the area of the field?

#5110. The ratio of the length and the perimeter of a rectangular plot is 1:3. What is the ratio of the length and the breadth of the plot?

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi Maburo and bobbym,

Maburo : The solution #5109 is correct. Excellent!

The solution

.

bobbym : The solutions #5108, #5109, and #5110 are all correct. Brilliant!

#5111. The ratio of the length and the breadth of a rectangular park is 3:2. If a man cycling along the boundary of the park at the speed of 12 kilometers per hour completes one round in 8 minutes, then what is the area of the park (in square meters)?

#5112. The length of a rectangular hall is 5 meters more than its breadth The area of the hall is 750 square meters. Find the length of the hall.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi bobbym,

The solutions #5111 and #5112 are correct. Marvelous!

#5113. The area of a rectangle is 460 square meters. If the length is 15% more than the breadth, what is the breadth of the rectangular field?

#5114. A rectangular field is fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 square feet, how many feet of fencing will be required?

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi bobbym and Maburo,

The solutions #5113 and #5114 are correct. Immaculate, bobbym and Maburo!

#5115. The ratio of the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 square centimeters, what is the length of the rectangle?

#5116. A farmer wishes to start a 100 square meter rectangular vegetable garden. Since he has only 30 meters barbed wire, he fences three sides of the rectangle letting his house compound wall act as the fourth side fencing. What are the dimensions of the garden?

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi bobbym and Maburo,

The solutions #5115 and #5116 are correct. Splendid, bobbym and Maburo!

#5117. The sides of a rectangular field are in the ratio 3:4. If the area of the field is 7500 square meters, find the cost of the field at the rate of $25 per meter.

#5118. A large field of 700 hectares is divided into two parts. The difference of the areas of the two parts is is one-fifth of the average of the two areas. What is the area of the smaller part in hectares?

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi bobbym and Maburo,

The solutions #5117 and #5118 are correct. Excellent, bobbym and Maburo!

(The solution #5117 is room for ambiguity. Regretted.)

#5119. A rectangular plot is half as long as it is broad and its area is

hectares. Then, find its length.

#5120. A courtyard 25 meters long and 16 meters broad is to be paved with bricks of dimensions 20 centimeters by 10 centimeters. Find the total number of bricks required.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi Maburo and bobbym,

The solutions #5119 and #5120 are correct. Splendid, Maburo and bobbym!

#5121. The cost of carpeting a room 18 meters long with a carpet 75 centimeters wide at $4.50 per meter is $810. Find the breadth of the room.

#5122. The diagonal of the floor of a rectangular closet is 7.5 feet. The shorter side of the closet is 4.5 feet. What is the area of the closet in square feet?

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

The solution #5122 is correct. Remarkable!

#5123. The length of a rectangle is three times its width. If the length of the diagonal is

centimeters, find the perimeter of the rectangle.

#5124. The diagonal of a rectangle is thrice its smaller side. Find the ratio of the length to the breadth of the rectangle.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Maburo

Member

From: Alberta, Canada

Registered: 2013-01-08

Posts: 287

Re: 10 second questions

---

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,423

Re: 10 second questions

Hi Maburo and bobbym,

The solution #5123 is correct. Excellent, Maburo and bobbym!

.

The solution #5124 is correct, bobbym! Excellent!

#5125. A rectangular carpet has an area of 120 square meters and a perimeter of 46 meters. Find the length of its diagonal.

#5126. A diagonal of a rectangle is

centimeters and its area is 20 square centimeters. Find the perimeter of the rectangle.

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: 10 second questions

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.