Question

A certain sum is invested at simple interest at 18% p.a. for two years instead of investing at 12% p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum ?
A) Rs. 5858
B) Rs. 8800
C) Rs. 7000
D) Rs. 6350

Answer 1

Q:

A certain sum is invested at simple interest at 18% p.a. for two years instead of investing at 12% p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum  ?

A) Rs. 5858B) Rs. 8800C) Rs. 7000D) Rs. 6350

Answer:   C) Rs. 7000 

Explanation:

Let the sum be Rs. S.
(S x 18 x 2)/100 - (S x 12 x 2)/100 = 840 => 36S/100 - 24S/100 = 840

=> 12S/100 = 840 => S = 7000.

Answer 2

Heya mate
The answer of ur question is

♢ 7000
Explanation -

Let the sum be Rs S

( S ×18 ×2 ) / 100 - ( S × 12 × 2 ) / 100 = 840
S = 7000




hope it helps