A sum become Rs. 10,650 in 5 years and Rs.11076 in 6 years at simple interest. What is the sum?

A person deposited ₹500 for 4 years and ₹ 600 for 3 years at the same rate of simple interest in a bank. Altogether he received ₹ 190 as interest. The rate of simple interest per annum was 

A sum of ₹ 800 amounts to ₹ 920 in 3 years at the simple interest rate. If the rate is increased by 3 % p.a., what will be the sum amount to in the same period? 

Rs. 1,080 invested for 3 months gave an interest of Rs. 27. The simple rate of interest per annum was :

A person borrows 5,000 for 2 years at 4 % per annum simple interest. He immediately lends it to another person at per annum simple interest for 2 years. His gain in this transaction is 

A takes a loan of Rs. 1500 from a bank at the rate of 10% simple interest for 3 years and lends to B at the rate of 15% for the same time period. Find the overall profit of A in the whole transaction.

A man invested Rs.25000 on simple interest at R% p.a. If interest received by man is three twentieth of the principal after three years, then find ‘R’?

The principal which gives ₹ 1 interest per day at a rate of 5 % simple interest per annum is