SSC CHSL 2020 PYQ — Question 61

SSC CHSL - 15th October 2020 - Shift 1 • Quantitative Aptitude • Q61

The area of a rectangle is a2 – b2 and its length is a + b, what will be its breadth?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e a - b

Understanding

Tricks

Application

Area of a rectangle = l × b

⇒ a2 – b2 = (a + b) × b

⇒ (a – b )(a + b) = (a + b) × b

⇒ (a – b ) = b

Hence

Breadth = a - b