1.

The rate of interest for the first 2 years is 5% for the next 3 years is 8% and beyond this. It is 10% per annum. If the simple interest for 8 years is Rs . 1280. What is the principal ?

A. Rs. 2500
B. Rs. 2000
C. Rs. 3200
D. Rs. 2440
Answer» C. Rs. 3200


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