Question

if ₹640 amount to ₹768 in 2years 6months, what will ₹850 amount to in 3years at thesame rate per cent per annum.​

Answer 1

Answer:

Refer to the attachment please !!

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Answer 2

Answer:

Interest earned in 2 years and 6 months or 2.5 years is = 768–640 =128

Hence the annual interest earned is =128/2.5 = 51.2

The Principal is 640. Hence the interest rate is 51.2/640 =.08 or 8%

In 3 years the Principal of 850 will become =( 850) * 1+(3*8)/100

The Amount after 3 years is Rs 1054.

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