Aptitude - Area - Discussion
Discussion Forum : Area - Data Sufficiency 2 (Q.No. 3)
Directions to Solve
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
3.
What is the area of rectangular field? | |
I. | The perimeter of the field is 110 metres. |
II. | The length is 5 metres more than the width. |
III. | The ratio between length and width is 6 : 5 respectively. |
Answer: Option
Explanation:
I. 2(l + b) = 110 
l + b = 55.
II. l = (b + 5) l - b = 5.
| III. | l | = | 6 | 5l - 6b = 0. |
| b | 5 |
These are three equations in l and b. We may solve them pairwise.
Any two of the three will give the answer.
Correct answer is (B).
Discussion:
4 comments Page 1 of 1.
Jagadeesh said:
1 decade ago
As we know l+b and l-b from 1 & 2 equations. Only first two equations are enough to find the area of rectangle.
Manoj Kumar said:
9 years ago
Let take Length = 30 and Breadth =25.
All the three will satisfy the 3 equations.
But, as per the given answer, this is not matched.
All the three will satisfy the 3 equations.
But, as per the given answer, this is not matched.
Nagendra Kr. Thakur said:
8 years ago
I think Answer marked as B is not correct, it should be D. As If we consider option II and III then we can't get the area of the rectangle.
Himanshu Arora said:
8 years ago
All 3 equations will be satisfied in give data.
Correct answer should be C.
Correct answer should be C.
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