Question

the simple interest on a certain principal for 6 years is 990.if the rate of interest is 5 nd half per cent, find the principal

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Answer 1

Answer - ₹3000.

Step-by-step explanation:

S.I - Rs 990.

Time = 6 years.

Rate = 5.5%

Principal = 100×SI / R×T

= 100×990/6×5.5

= 100 and 5.5 get canceled by 5 so we got 20×990/6×1.1

= Again 990 get canceled by 1.1 and we got 20×900/6.

= 900 get canceled by 6 so we got 20×150.

Hence the Principal = ₹3000.

Hope you got your answer.