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%


12. 

What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?

A. 1 : 3
B.

1: 4

C.

2: 3

D.

अपर्याप्त डेटा


13. 

A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?

A. Rs. 35
B.

245 रुपये

C.

350 रुपये

D.

तय नहीं किया जा सकता


14. 

A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6 p.a for 2 years. Find his gain in the transaction per year.

A. Rs. 112.50
B.

125 रुपये

C.

150 रुपये

D.

167.50 रुपये