SSC Sample Paper Mock Test-2 SSC CGL Tear-II Paper-1

A man invested Rs. 3500, part of it at a yearly interest rate of 40% and the rest at 5%. He received a total annual interest of Rs. 153. How much did he invest at rate 5%?

A) Rs. 2200

B) Rs.1300

C) Rs. 2000

D) Rs.1800

Correct Answer: B

Solution :

Let amount invested at the rate of 4% be Rs. x and the amount at the rate of 5% be Rs. y.

Annual interest at\[4%=\frac{x\times 4\times 1}{100}=\left[ \frac{4x}{100} \right]\]

Amount interest at\[5%=\frac{y\times 5\times 1}{100}=\frac{5y}{100}\]

So, \[\frac{4x}{100}+\frac{5y}{100}=153\Rightarrow 4x+5y=15300\]

and \[x+y=3500\] (by condition)

On solving, we get x = 2200 and y = 1300

Hence, amount invested at 5% = Rs. 1300