A sum of Rs 5000 is divided into two parts such that the simple interest on the first part for 
years at 
p.a. is double the simple interest on the second part for 
years at 4% p.a. What is the difference between the two parts?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Rs 600.
S.I. on 1st part = × = (21/5) × (20/3) = 28%
I on second part = (11/4) × 4 = 11%
28% of x = 2 × 11% of y
x/y = 22/28 = 11/14
Total parts = 25 = 5000
1 part = 200
Difference = 3 parts = 3 × 200 = 600