[" A certain sum becomes "₹2400" in "10" years at the "],[" rate of "2%" per annum under simple interest.Find "],[" the sum."]

A certain sum becomes Rs. 2400 in 10 years at the rate of 2% per annum under simple interest. Find the sum.

A sum at 12 (1/2%) per annum amounts to Rs 8723 in 5 years at simple interest. Find the sum.

For a certain sum, the simple interest in 2 yr at 8% per annum is 110 more than the simple interest in 1 yr at the rate of 5% per annum for the same sum. Find the sum.

For a certain sum, the simple interest in 2 yr at 8% per annum is ? 90 more than the simple interest in 1.5 yr at the rate of 10% per annum for the same sum. Find the sum

A certain sum of money becomes Rs 2100 in 4 years and Rs 2550 in 7 years. Find the rate of simple interest per annum.

In how many years will a certain sum becomes five times itself at 20% per annum simple interest?