SSC CHSL 2020 PYQ — Question 74

SSC CHSL - 12th October 2020 - Shift 2 • Quantitative Aptitude • Q74

Length and breadth of a rectangular field are in the ratio 5 : 2. If the perimeter of the field is 238 m. Find the length of the field.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e 85 m.

Understanding Application

Let the length and the breadth of the field be 5x and 2x respectively.

Perimeter = 2( Breadth + Length)

Perimeter = 238 m

So,

⇒ 2(5x + 2x) = 238 m

⇒ 5x + 2x = 119 m

⇒ 7x = 119 m

⇒ x = 17 m

Hence, Length = 5 × 17 m = 85 m

Breadth = 2 x 17 m= 34 m