Advertisements
Advertisements
प्रश्न
Calculate the rate per cent at which Rs 16,000 will yield Rs 3,876.75 as compound interest in 3 years.
Advertisements
उत्तर
P = Rs 16,000; A = Rs (16,000+3,876.75) = Rs 19,876.75 ; t = 3 years ; r = ?
`"A" = "P" (1 + "r"/100)^"n"`
Rs 19,876.75 = Rs 16,000 `(1 + "r"/100)^3`
`19876.75/16000 = (1 + "r"/100)^3`
`(27.08)^3/(25.19)^3 = (1 + "r"/100)^3`
`2708/2519 = 1 + "r"/100`
`"r"/100 = 2708/2519 - 1 = (2708 - 2519)/2519 = 189/2519`
`"r" = 18900/2519 = 7.5 %`
Hence , r = 7.5%
संबंधित प्रश्न
Manoj borrowed Rs 25,000 from Sohan at 8.4 % p.a. compound interest. After 2 years Manoj cleared Rs 17,500 and a motorcycle. Find the cost of the motorcycle.
What sum of money will amount to Rs 9,447.84 in 3 years at 8% p.a. compound interest?
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 original cost.
Calculate the amount and the compound interest for the following, when cornpounded half-yearly:
Rs 25,000 for `1 1/2` years at 12 %
What sum of money will amount to Rs 18, 792 in `1 1/2` years at 16% p.a. compounded yearly?
A sum of money placed at compound interest compounded annually amounts to Rs 31,360 in 2 years and to Rs 35,123.20 in 3 years. Calculate the rate of interest and the sum.
The compound interest on a certain sum of money at 10% p.a. for 3 years is Rs 4,965. What will be the simple interest on the same sum for 3 years at 11% p.a.?
