SSC CGL 2021 PYQ — Question 74

SSC CGL - 20 Aug 2021 - Shift 3 • Quantitative Aptitude • Q74

In a triangle PQR, point E and F are on sides PQ and PR respectively such that EF is parallel to QR. If PE = 2 cm and EQ = 3 cm, then area(Δ\DeltaPQR) : area(Δ\DeltaPEF) is equal to:

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. 25 : 4.

PQ = 2 + 3 = 5 cm.

Here it is given that EF || QR then one can say that  Δ\DeltaPEF is similar to  Δ\DeltaPQR.

area(Δ\DeltaPQR) : area(Δ\DeltaPEF) = (5 : 2)2

area(Δ\DeltaPQR) : area(Δ\DeltaPEF) = 25 : 4.