Question

Answer these question
1) There are 25 radios, 16 of them are out of order. What percent of radios are out of order?
2) At what rate per cent per annum simple interest will a sum treble itself in 16 years?
3) In what time will ₹ 1600 amount to ₹ 1768 at 6% per annum simple interest?
4) At what rate per cent per annum simple interest will a sum be double itself in 8 years?

Answer 1

Answer:

1) = 64%

3) =1 and half of year