Math, asked by studystaar, 3 months ago

a sum of money lend at simple interest amounts to rupees 4745 in 3 yrs and to rupees 5475 in 5 yrs. find the sum and the rate per cent per annum.
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Answers

Answered by Jane5986
3

Answer:

Answer is R= 10%

Step-by-step explanation:

let sum is p and rate isr SI=4745-p in 3 years -(1)

SI=5475 -P in 5 years subtracting (2) to (1)

SI=730 in 2 years

hence 1 year SI = 365 Rs

hence 3 years Si=3 x 365= 1095 Rs

now put Si in equation (1)

1095=4745-p

p=4745-1095=3650 Rs

hence sum =3650 Rs

now

Si=p x rx t/100

1095=3650 xrx 3/100

r=10%

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