RRB RPF RPSF SI and CONS Model Papers 9 with solutions

Question : 65 of 120

Marks: +1, -0

If the difference between the compound interest, compounded every six months, and the simple interest on a certain sum of money at the rate of 12% per annum for one year is Rs. 36, the sum is :

Rs. 10,000
Rs. 12,000
Rs. 15,000
Rs. 9,000

Validate

Solution:

(1) Sum

= {36 ×100× 100}/{6 ×6 }= 1000

Note : As the interest was compounded half-yearly, we changed r to

r/2

and t to 2t.

Go to Question:

Prev Question

Next Question