Question

Ram borrowed 550 with simple interest from Ghanshyam at 8 p.c.p.a. After 6 months Ram returned all the amount. How much money did he return? (A) *22 (B) 528 (C) 572 e* (D) 814 If a certain amount of money doubles in 5 years, the rate of interest p.c.p.a. is. (A) 5 (B) 10 (C) 25 (D) 20​

Answer 1

Answer:

simple interest of 550 at 8% p.a in 6 months =(550×8×0.5)/(100)

=22

total returned amount=(550+22)=572(C)

let's assume Rs 100 doubles in 5 years become 200

interest in 5 year =100

interest in 1 year = 20 (D)