Question

The amount of Interest on Rs. 1500 in 25
months at the rate of 12%
1. Rs. 375
2. Rs. 120
3. Rs. 390
4. Rs. 240. please give step by step explaination​

Answer 1

Step-by-step explanation:

principal amount P=1500

no.of months n=25

rate of interest r=12%

interest = p*n(n+1)/2*1/12*r/100

interest =1500*25*26/2*1/12*12/100

interest =15*25*13

=4878