1. 

The area a rectangle is equal to the area of right-angles triangle. What is the length of the rectangle?

I. The base of the triangle is 40 cm.

II.The height of the triangle is 50 cm.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer

Answer: Option D

Explanation:

Given: Area of rectangle = Area of a right-angles triangle.

l x b = 1 x B x H
2

I gives, B = 40 cm.

II gives, H = 50 cm.

Thus, to find l, we need b also, which is not given.

∴ Given data is not sufficient to give the answer.

∴ Correct answer is (D).