Question
What sum of money lent out at 6% for 2 years will produce the same interest as Rs. 1200 lent out at 5% for 3 years.
Hint:
Given that interest produced is same in both the cases. So equate two SI equations
The correct answer is: 1500 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
Case Ⅰ
Let the sum of money = P
Here, we have
On
substituting the values in (i), we get …(ii)
Case Ⅱ
Here, we have
On substituting the values in (i), we get …(iii)
It is given that the interest produced in both the cases is the same.
So, Equate (ii) and (iii)On equating, we get
rupees.
Hence the sum of money P = 1500 Rupees
Hence the sum of money P = 1500 Rupees
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what sum of money will amount to rupees 840 in 3 years at 4% interest per year in this question we have been given that amount is equals to 840 and time period t is equals to 3 and rate of interest are is equals to 4 we need to find out which is a principal so we know that s y is equals to p into our into t divided by 100 so also but also we know that is also equal amount - principal is equals to principal in 2 hour into t100 which is now we know that amount is 840 minus b is equals to PC into rate of interest is 4 and time period is 3 upon hundred this week
84000 -150 is equals to 4 3 years at 12 p.m. which is equals to 84000 is equals to 11 topi topi comes out to be 750 this is a principal
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