Question

A certain amount of money amounts to Rs. 720 in 2 years and to Rs. 870 in 4(1/2) years. Find the rate of interest if S.l. is reckoned.​

Answer 1

Step-by-step explanation:

Answer

Correct option is

D

Rs 600

⇒ S.I. for 2 years = Rs. 720.

⇒ S.I. for 7 years = Rs. 1020

∴ S.I. for 5 years = Rs. 1020− Rs. 720= Rs. 300.

⇒ S.I. for 2 years =

5

300

×2=Rs.120

⇒ Principal=720−120=Rs.600

∴ The sum is Rs.600.