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-
সমাধান
সঠিক উত্তর: Option B
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
