Question

3) At a rate of 8 p.c.p.a. What would be
the interest for one year on 5000?
500
O 3400
O ₹ 800​

Answer 1

Answer :

Given : Rate of interest = 8 p.c.p.a

p=5000

A=500

To find : The Interest for one year

Sol^n : A=P[1+R/100]^N

500=5000[1+8/100]^N

500=5000[1×100+8/100]^N

500=5000[108/100]^N

5000/500=[108/100]^N

10=[108/100]^N

10=108/100^N

N=108/100×10

N=108×10/100

N=108×100/10

N=108×10

N=1080

N=1080÷8

N=135-100

…( subtracting 100 by both sides )

N=35 is divided by 5

N=35÷5

N=7years

Now,

I=P×R×N/100

I=5000×8×7÷100

I=50×8×7

I=400×7

I=2800

•°• I=2800

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