Question

At aimple intrest a sum becomes 49/40of itself in 5/2 years .The rate of intrest per annum is​

Answer 1

Answer:

49%

Step-by-step explanation:

Let it be X

So Interest=49/40*X

Time=2.5 years

R=Interest*100/P*T

R=X(49/40)*100/X*2.5

R=(49/40)*100/2.5

R=1.225*100/2.5

R=122.5/2.5

R=49%

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