Advertisements
Advertisements
प्रश्न
In how much time will the simple interest on ₹ 3,000 at the rate of 8% per annum be the same as simple interest on ₹ 4,000 at 12% per annum for 4 years?
Advertisements
उत्तर
Let the required number of years be x
Simple Interest I = `"Pnr"/100`
Principal P1 = ₹ 3000
Rate of interest (r) = 8%
Time (n1) = n1 years
Simple Interest I1 = `(3000 xx 8 xx "n"_1)/100` = 240 n1
Principal (P2) = ₹ 4000
Rate of interest (r) = 12%
Time n2 = 4 years
Simple Interest I2 = `(4000 xx 12 xx 4)/100`
I2 = 1920
If I1 = I2
240 n1 = 1920
n1 = `1920/240`
= 8
∴ The required time = 8 years
APPEARS IN
संबंधित प्रश्न
What rate gives ₹ 280 as interest on a sum of ₹ 56,000 in 2 years?
Rohit borrowed Rs. 24,000 at 7.5 percent per year. How much money will he pay at the end of the 4th years to clear his debt?
Raj borrows Rs.8,000; out of which Rs. 4500 at 5% and the remainder at 6%. Find the total interest paid by him in 4 years.
John lent Rs. 2550 to Mohan at 7.5 percent per annum. If Mohan discharges the debt after 8 months by giving an old black and white television and Rs. 1422.50; find the price of the television.
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?
Basha borrowed ₹ 8,500 from a bank at a particular rate of simple interest. After 3 years, he paid ₹ 11,050 to settle his debt. At what rate of interest he borrowed the money?
The value of a machine depreciates at 10% per year. If the present value is ₹ 1,62,000, what is the worth of the machine after two years?
₹ 6400 were lent to Feroz and Rashmi at 15% per annum for `3 1/2` and 5 years respectively. The difference in the interest paid by them is ₹ 150.
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.
What sum of money lent out at 16 per cent per annum simple interest would produce ₹ 9600 as interest in 2 years?
