Maths-
General
Easy
Question
Find out the simple interest on Rs. 7500 for 2 ½ years at 15 % per annum. Also find the amount
Hint:
Find the simple interest and then add it with the principal amount to get the total amount.
The correct answer is: 10437.5 Rupees
Complete step by step solution:
We calculate simple interest by the formula,
…(i)
where P is Principal amount, T is number of years and R is rate of interest
Let the sum of money P = 7500 Rs
Here, we have T = 2.5 years, 
and P = 7500 Rs
On substituting the known values in (i), we get 
We have SI = 2937.5 Rupees.
We know the formula for total amount = A = P + SI…(ii)
where A is the total amount, P is the principal amount and SI is simple interest.
On substituting the known values in (ii), we get A = 7500 + 2937.5 = 10437.5
Hence the simple interest = 2937.5 Rupees
And total amount = A = 10437.5 Rupees.
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