SSC CGL 2019 PYQ — Question 59

SSC CGL - 12th June 2019 - Shift 3 • Quantitative Aptitude • Q59

In ΔABC, P is a point on BC such the BP : PC = 4 : 3 and Q is the midpoint of BP. Then ar(ΔABQ) : Ar(ΔABC) is equal to?

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 2 : 7

Concept

Understanding

Application

If heights of 2 triangles are same:

Ratio of areas of triangles = Ratio of Base of triangles 

Given:

BP : PC = 4 : 3

Hence, BC = 4x + 3x = 7x

 

Since Q is the midpoint of BP:

BQ = BP/2 = 4x/2 = 2x

Here, the heights of triangles ABQ and ABC are same:

ar ΔABQ : ar ΔABC = BQ : BC

⇒ ar ΔABQ : ar ΔABC = 2 : 7