Math, asked by sadhanadaripkar, 10 months ago

A certain sum amounts to $2200 in 2 years to $2800 in 4 years at simple interest. Find the sum and the rate per cent per annum

Answers

Answered by rudraverma2066
8

Answer:

please thank me !

P=1600

R=18.75%

Step-by-step explanation:Given:

In 2 years Amount= 2200.........................(1)

In 4 years Amount =2800.........................(2)

To find:

Sum and rate percent

Let the sum =P

Rate percent = R%

from equation 1 and 2 we can say that simple interest in 2 years= 600

hence P+600=2200

∴ P=1600

we know that SI=P*R*T/100

600=1600*R*2/100

R=18.75%

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