Simple Interest | Arithmetic aptitude | Discussion Page | Question 4643

1)

A sum of money at simple interest amounts to Rs. 900 in 3 years and to Rs. 954 in 4 years. The sum is:

A) Rs. 800

B) Rs. 790

C) Rs. 792

D) Rs. 750

E) Rs. 780

Answer:

Option C

Explanation:

$SI$ for $1$ year = Rs. $(954-900)$ = Rs. $54$ .

$SI$ for $3$ years = Rs. $(54\times 3)$ = Rs. $162$ .

So the Principal = Rs. $(954-162)$ = Rs. 792.