Question

If 1 ₹ becomes 9₹ in 60 years at simple interest find the rate percent per annum​

Answer 1

GIVEN

Simple Interest = 9₹

Time = 60yrs

Principle = 1₹

TO FIND

Rate percentage

FORMULA

SI = P×R×T/100

So,

R = SI×100/P×T

SOLUTION

R = 9×100/1×60

R = 900/60

R = 15

ANSWER

the rate percentage per anum is 15%.

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