Question

calculating compound interest on rupees 30000 at the rate of 9 percent compound interest per annum for 3 years ​

Answer 1

WE WILL COMPLETE THE ANSWER IN 2 TASKS

1. TASK 1 - We will find amount .

2. TASK 2 - We will find interest .

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TASK 1

=> Amou.= prin. X ( 1 + RATE / 100 ) to the power time .

=> P = 30,000

=> R = 9

=> T = 3

LETS BEGIN CALCULATING WITH FRESH MIND .

=> A = 30,000 X ( 1 + 9 /100 ) to the power 3

=> A = 30,000 X ( 109 / 100)   to the power 3

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Rough place

109's cube is 2,97,029

now if we cancel 109 / 100 = 1.09

Then we will multiply 29.7029 by 30,000

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=> 30000 X 29.7029 = AMOUNT

=> 891087.0000 = AMOUNT

OUR TASK 1 COMPLETED WE HAD FIND THAT AMOUNT = 891087

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TASK 2 BEGINS ,

C.I = AMOUNT - PRINCI.

A = 891087

P = 30000

C.I = 891087 - 30000

C.I = 591087

OUR TASK 2 COMPLETED , COMPOUND INTEREST IS = 591087

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