Advertisements
Advertisements
प्रश्न
Calculate the amount and the compound interest on:
Rs. 16,000 in 3 years, when the rates of the interest for successive years are 10%, 14% and 15% respectively.
Advertisements
उत्तर
For 1st year
P = Rs. 16000; R = 10%; T = 1 year
I = `[16000 xx 10 xx 1]/100`
I = Rs. 1600
A = 16000 + 1600 = 17600
For 2nd year,
P = Rs. 17600; R = 14%; T = 1 year
I = `[17600 xx 14 xx 1]/100 = 246400/100`
I = Rs. 2464.
A = 17600 + 2464 = Rs. 20064
For 3rd year,
P = Rs. 20064; R = 15%; T = 1 year
I = `[20064 xx 15 xx 1]/100`
I = 3009.60
Amount after 3 years = 20064 + 3009.60 = Rs. 23073.60
Compound interest = 23073.60 - 16000 = Rs. 7073.60
APPEARS IN
संबंधित प्रश्न
Alisha invested Rs 75000 for 4 years at 8 % p.a. compound interest,
Calculate the interest for the fourth year.
Meera borrowed Rs 12,500 on compound interest from Rajeev for 2 years when the rates of interest for successive years were 8% and 10%. If Meera returned Rs 7,500 at the end of the first year, find the amount she has to return at the end of the second year.
Manoj saves Rs 5,000 every year and invests it at 12% p.a. compound interest. Calculate his savings at the end of the third year.
A man's savings increases by Rs 50 every year. If he saves Rs 500 in the first year and puts it at 10% compound interest, find his savings at the end of the third year.
Find the sum invested at 8% p.a. compound interest on which the interest for the third year exceeds that of the first year by Rs 166.40.
Rs.16,000 is invested at 5% compound interest compounded per annum. Use the table, given below, to find the amount in 4 years.
| Year ↓ |
Initial amount (Rs.) |
Interest (Rs.) |
Final amount (Rs.) |
| 1st | 16,000 | 800 | 16,800 |
| 2nd | ........... | ........... | ........... |
| 3rd | ........... | ........... | ........... |
| 4th | ........... | ........... | ........... |
| 5th | ........... | ........... | ........... |
Calculate the amount and the compound interest on:
Rs. 8,000 in `2 1/2` years at 15% per year.
Find the compound interest, correct to the nearest rupee, on Rs. 2,400 for `2 1/2` years at 5 per cent per annum.
A man saves Rs. 3,000 every year and invests it at the end of the year at 10% compound interest. Calculate the total amount of his savings at the end of the third years.
6000 workers were employed to construct a river bridge in four years. At the end of first year, 20% workers were retrenched; At the end of second year 5% of the workers at that time were retrenched. However, to complete the project in time, the number of workers was increased by 15% at the end of third year. How many workers were working during the fourth year?
