Simple interest on a certain sum at the rate of 4.5% p.a for 4 years and 6 years differs by BDT 216. The sum is-

Simple interest on a certain sum at the rate of

4.5% p.a for 4 years and 6 years differs by

BDT 216. The sum is-

A BDT 2100

B BDT 1800

C BDT 2400

D None of this

Correct Answer: Option C

মনেকরি, আসল = p টাকা

প্রশ্নমতে, {(P x 6 × 4.5 )/100}- {(p x 4 × 4.5)/100} = 216

⇒27p - 18 p = 21600

⇒ 9p = 21600

⇒ p = 2400