Aptitude - Area - Discussion
Discussion Forum : Area - General Questions (Q.No. 3)
3.
The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
Answer: Option
Explanation:
| 2(l + b) | = | 5 |
| b | 1 |
2l + 2b = 5b
3b = 2l
| b = | 2 | l |
| 3 |
Then, Area = 216 cm2
l x b = 216
| l x |
2 | l | = 216 |
| 3 |
l2 = 324
l = 18 cm.
Discussion:
22 comments Page 3 of 3.
Gayu said:
4 years ago
How to 2/3 =216? Explain.
MAHI said:
7 years ago
2(5+1)216.
= 12/216
= 18
= 12/216
= 18
(1)
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