Question

4. In what time will * 2800 fetch a simple interest of 532 at 7% per annum?

5. What sum invested at 14% per annum will yield a simple interest of * 490 in 1 year?

6. In what time would a sum of money amount to three times itself at 15% per annum
simple interest?​

Answer 1

Answer:

Let principal amount, P = 100

Then, Simple Interest, SI = 200

Rate, R = 15%

Time, T = ?

Now,

SI = (P×T×R)÷100

200 = (100×T×15)÷100

T = 13.33 Years