Find the simple interest on :
$Rs3000$ for $4$ years at $8$ per annum.

Q. The simple interest on a certain sum for 8 years at 12% per annum is ₹3,120 more than the simple interest on the same sum for 5 years at 14 % per annum. Find the sum.

Q.

Find the simple interest on Rs 2,500 for 4 years at per annum.

Q. Simple interest on a certain sum of money for $3$ years at $8$% per annum is half the compound interest on $Rs.4000$ for $2$ years at $10$% per annum. The sum placed on simple interest is: