Question

A sum of money at simple interest amounts to Rs. 900 in 4 years and to Rs. 950 in 5 years. Find the original sum of money.

• A. Rs. 750
• B. Rs. 800
• C. Rs. 700
• D. Rs. 650

Answer 1

The correct option is C

Rs. 700

S.I. for 1 year
$=$ $Rs.$ $(950-900)$
$=$ $Rs.$ $50$

S.I. for 3 years
$=$ $Rs.$$(50\times 4)$
$=$ $Rs.$ $200$

$Principal$ $=$ $Rs.$ $(900-200)$
$=$ $Rs.$$700$