Question

A man derives his income from the investment of Rs.4150 at a certain rate of simple interest
and Rs.3500 at 1% higher. His whole income for 4 years is Rs.1211. Find the rates of interest.​

Answer 1

Answer:

3.5%

Step-by-step explanation:

intrest rs 4150+3500= 1211/4-3500*1/100

intrest rs 7650=1211/4-35

intrest rs 7650=1211-140/4

intrest rs 7650= 1071/4

lowest intrest rate=1071/4*100/7650

rate=3.5%