Advertisements
Advertisements
Question
Calculate the amount and the compound interest for the following:
Rs 10,000 for 3 years if tl1e rates of interest are 10%, 11% and 12% for the successive years.
Advertisements
Solution
P=Rs 10,000; t=3 years; r = 10%, 11% and 12% successively.
`"A" = "P" (1 + "r"/100)^"n"`
A = Rs 10000 `(1 + 10/100)(1 + 11/100)(1 + 12/100)`
= Rs 10000 x 1.1 x 1.11 x 1.12
= Rs 13,675.20
C.l. = A - P
= Rs (13,675.20 - 10, 000)
= Rs3,675.20
Hence, Amount= Rs 13,675.20 and C.I. =Rs 3,675.20
RELATED QUESTIONS
Amita wanted to start a business for which she needed Rs, 40000. She borrowed this from Dolly at 10% p.a compounded semi-annually. Find the extra amount that she needs to pay at the end of two years to clear her debt.
The interests on two successive years for a sum invested at compound interest compounded annually are Rs 840 and Rs 940.80. Calculate the rate of interest and the sum invested.
The cost of a scooter depreciated by Rs 5100 during the second year and by Rs 4,335 during the third year. Calculate
The original cost of the scooter.
The cost of a scooter depreciated by Rs 5100 during the second year and by Rs 4,335 during the third year. Calculate
The cost of a machine depreciated by Rs 2592 during the third year and by Rs 2332.80 during the fourth year. Calculate :
The rate of depreciation.
Ramesh borrowed Rs 12,000 at 15% compound interest for 2 years. At the end of the first year he returned some amount and on paying Rs 9,200 at the end of the second year, he cleared the loan. Calculate the amount of money Ramesh returned at the end of the first year.
Calculate the amount and cornpound interest for the following, when cornpounded annually:
Rs 7 ,500 for `2 1/2` years ; r =16 % p.a.
Calculate the rate percent at which Rs 15,000 will yield Rs 8,413.44 as compound interest in 3 years.
A sum of money placed at compound interest compounded annually amounts to Rs 26,460 in 2 years and to Rs 29,172.15 in 4 years. Calculate the rate of interest and the sum.
The cost of a machine depreciates by 10% every year. If its present worth is Rs.18,000; what will be its value after three years?
