Javed deposited Rs 12000 at 9 p.c.p.a in a bank for some years, and wi

1.	Javed deposited Rs 12000 at 9 p.c.p.a in a bank for some years, and withdrew his interest every year. At the end of the period, he had received altogether Rs 17,400. For how many years had he deposited his money?
Answer» Amount = Principal + Interest ∴17400 = 12000 + Interest ∴Interest = 17400 – 12000 = Rs 5400 ∴ Total interest = (P x R x T)/100 5400 = (12000 x 9 x T)/100 ∴ (5400 x 100)/(12000 x 9) = T ∴ T = 5 years ∴ Javed had deposited the amout for 5 years.

Javed deposited Rs 12000 at 9 p.c.p.a in a bank for some years, and withdrew his interest every year. At the end of the period, he had received altogether Rs 17,400. For how many years had he deposited his money?

Answer»

Amount = Principal + Interest

∴17400 = 12000 + Interest

∴Interest = 17400 – 12000 = Rs 5400

∴ Total interest = (P x R x T)/100

5400 = (12000 x 9 x T)/100

∴ (5400 x 100)/(12000 x 9) = T

∴ T = 5 years

∴ Javed had deposited the amout for 5 years.