SSC CHSL 2021 PYQ — Question 69

The correct answer is option 3 i.e.  6600 and 8$\frac{1}{2}$

$SI = {(P \times R \times T) \over 100}$

Interest = Amount - principle

According to the given question,

Interest for (7 - 7/2) years = 10527 - 8563.50

⇒ For 7/2 years = 1963.5

Now, Principle = x = 8563.50 - 1963.5 = 6600

Now, $1963.5 = {( 6600 \times y \times {7 \over 2}) \over 100}$

⇒ 1963.5 = 33 × y × 7

⇒ y = 8.5%

Hence the required answer is x = Rs. 6600 and y% = $8{1 \over 2} \%$.