Advertisements
Advertisements
प्रश्न
₹ 9000 becomes ₹ 18000 at simple interest in 8 years. Find the rate per cent per annum.
Advertisements
उत्तर
Given, P = ₹ 9000, A = ₹ 18000 and T = 8 years
As we know, A = P + I
⇒ I = A – P = 18000 – 9000
⇒ I = ₹ 9000
Now, `I = (P xx R xx T)/100`
⇒ `R = (I xx 100)/(P xx T) = (9000 xx 100)/(9000 xx 8)`
∴ R = 12.5%
Hence, the rate of interest per annum is 12.5%.
APPEARS IN
संबंधित प्रश्न
If Meena gives an interest of ₹ 45 for one year at 9% rate p.a.. What is the sum she has borrowed?
Find the interest and the amount on:
₹ 750 in 3 years 4 months at 10% per annum.
On what date will ₹ 1950 lent on 5th January 2011 amount to ₹ 2125.50 at 5 percent per annum simple interest?
Mahesh deposited rupees 8650 in a bank at a rate of 6 p.c.p.a. How much money will he get at the end of the year in all?
Vilasrao borrowed Rs. 20000 from a bank at a rate of 8 p.c.p.a. What is the amount he will return to the bank at the end of the year?
Given the principal = Rs 40,000, rate of interest = 8% p.a. compounded annually. Find
- Interest if period is one year.
- Principal for 2nd year.
- Interest for 2nd year.
- Amount if period is 2 years.
Gayatri’s income is ₹ 1,60,000 per year. She pays 15% of this as house rent and 10% of the remainder on her child’s education. The money left with her is ______.
Amount received after depositing ₹ 800 for a period of 3 years at the rate of 12% per annum is ₹ 896.
Chalk contains 10% calcium, 3% carbon and 12% oxygen. Find the amount of carbon and calcium (in grams) in `2 1/2` kg of chalk.
In how many years will the simple interest on a certain sum be 4.05 times the principal at 13.5 per cent per annum?
