Question

what is the ratio of simple interest earned on certain amount at the rate of 12% per annum for 9 years and that for 12 years ?

Answer 1

Answer:

Step-by-step explanation:

11.  

A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

A. 5%

B. 8%

C. 12%

D. 15%

Answer: Option C

Explanation:

S.I. for 3 years = Rs. (12005 - 9800) = Rs. 2205.

S.I. for 5 years = Rs.  2205 x 5  = Rs. 3675

3

Principal = Rs. (9800 - 3675) = Rs. 6125.

Hence, rate =  100 x 3675 % = 12%

6125 x 5

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