Question

A certain sum amounts to 7400 in 3 yrs and 8600 in 4 yrs. Find the sum and rate of

interest​

Answer 1

Answer:  ( d ) Hence, interst in 112years=117

Interest in 1year=1173×2=78

Interest in 2 years=78xx2=156

Principal=(756-156)=600

Required rate%=78600×100=13%

Step-by-step explanation:

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