Advertisements
Advertisements
प्रश्न
Find the C.I. on ₹ 15000 for 3 years if the rates of interest are 15%, 20% and 25% for the I, II and III years respectively
Advertisements
उत्तर
Principal (P) = ₹ 15000
Rate of interest 1 (a) = 15% for year I
Rate of interest 2 (b) = 20% for year II
Rate of interest 3 (c) = 25% for year III
Formula for amount when rate of interest is different for different years is
A = `(1 + "a"/100)^1 (1 + "b"/100)^1 (1 + "c"/100)^1`
Substituting in the above formula, we get
A = `15000(1 + 15/100)(1 + 20/100)(1 + 25/100)`
= `15000 xx 115/100 xx 120/100 xx 125/100`
= 25,875
∴ Compound Interest (C.I.) = A – P
= 25,875 – 15,000
= ₹ 10,875
∴ C.I. = ₹ 10,875
APPEARS IN
संबंधित प्रश्न
Calculate the amount and compound interest on Rs 18000 for `2 1/2` years at 10% per annum compounded annually.
Find the difference between the compound interest and simple interest. On a sum of Rs 50,000 at 10% per annum for 2 years.
What will Rs 125000 amount to at the rate of 6%, if the interest is calculated after every 3 months?
Simple interest on a sum of money for 2 years at \[6\frac{1}{2} %\] per annum is Rs 5200. What will be the compound interest on the sum at the same rate for the same period?
Find the amount and the compound interest.
| No. | Principal (₹) | Rate (p.c.p.a.) | Duration (Years) |
| 1 | 2000 | 5 | 2 |
| 2 | 5000 | 8 | 3 |
| 3 | 4000 | 7.5 | 2 |
A certain sum amounts to Rs. 5,292 in two years and Rs. 5,556.60 in three years, interest being compounded annually. Find : the rate of interest.
A certain sum amounts to Rs. 5,292 in two years and Rs. 5,556.60 in three years, interest being compounded annually. Find: the original sum.
Rachna borrows Rs. 12,000 at 10 percent per annum interest compounded half-yearly. She repays Rs. 4,000 at the end of every six months. Calculate the third payment she has to make at end of 18 months in order to clear the entire loan.
A man borrowed Rs. 20,000 for 2 years at 8% per year compound interest. Calculate :
(i) the interest of the first year.
(ii) the interest of the second year.
(iii) the final amount at the end of the second year.
(iv) the compound interest of two years.
If the present population of a city is P and it increases at the rate of r% p.a, then the population n years ago would be `"P"(1 + "r"/100)^"n"`
