Question

A teacher deposited Rs 66,000 in his saving account for as many years as the rate of interest per year. If he paid Rd 10,560 as interest at the end of saving period, find the time duration and rate of interest.

Answer 1

Answer:

RATE OF INTEREST = 4 PERCENT

YEAR = 4

Step-by-step explanation:

$66000/100*x*x = 10560\\660*x*x = 10560\\660*x^{2} = 10560\\10560/660 = x^{2} \\1056/66 =x^{2} \\528/33 = x^{2} \\48/3 = x^{2} \\x = 16\\Rate of interest = \sqrt{16} =4\\year = 4$

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