The sum of interest on a sum of ₹ 2000 at the rate of 6% per annum for 1½ years and 2 years is ₹ 420.
From the question it is given that, P = 2000, R = 6% and R = 1½
As we know that,
I = (P × R × T)/100
I = (2000 × 6 × 3)/ (100 × 2)
I = ₹ 180
For 2 year,
I = (P × R × T)/100
I = (2000 × 6 × 2)/ (100)
I = ₹ 240
Then, sum = 180 + 240 = 420