o 18. Sunil invested Rs. 2000 for 3 years and Rs. 3000 for 22 years at

1.	o 18. Sunil invested Rs. 2000 for 3 years and Rs. 3000 for 22 years at the same rainterest. He received a total interest of Rs. 810, what was the rate of interest?
Answer» SI = PRT/100 For P= 2000, T = 3, R=? SI1 = 2000R3/100 = 60R For P = 3000, T = 5/2, R =?SI2 = 3000R5/200 = 75R According to the given conditionSI1 + SI2 = 81060R + 75R = 810135R = 810R = 810/135 = 6 Rate of Interest = 6%

o 18. Sunil invested Rs. 2000 for 3 years and Rs. 3000 for 22 years at the same rainterest. He received a total interest of Rs. 810, what was the rate of interest?

Answer»

SI = P*R*T/100

For P= 2000, T = 3, R=? SI1 = 2000*R*3/100 = 60R

For P = 3000, T = 5/2, R =?SI2 = 3000*R*5/200 = 75R

According to the given conditionSI1 + SI2 = 81060R + 75R = 810135R = 810R = 810/135 = 6

Rate of Interest = 6%