SSC CGL 2019 PYQ — Question 61

SSC CGL - 11th June 2019 - Shift 2 • Quantitative Aptitude • Q61

The difference between the compound interest and simple interest on Rs. x at 7.5% per annum for 2 years is Rs. 45. What is the value of x?

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. 8000

Concept

Understanding

Application

Difference between CI and SI for 2 years formula:

Difference = P(r/100)2

Given, r = 7.5%, 

time = 2 years 

Suppose

P = x

(P × 7.5 × 7.5)/(100 × 100) = 45

⇒ P = 30000/3.75

⇒ P = 8000