Math, asked by seetapandey632, 7 months ago

In how much time will Rs 4,000 amount to
Rs 4,630.50 when the interest is compounded
annually at the rate of 5% per annum.​

Answers

Answered by anushkadanekar
3

Answer: Time period is 3 years.

Step-by-step explanation:

Amount = Rs. 4630.50

Principal = Rs. 4000

Rate = 5% p.a.

Time = ?

• Formula for Amount of CI is :

Amount = P * ( 1 + r/100) raise  to t

4630.50 = 4000* (1 + 5/100)

463050/10 = 4000 * (1 + 5/100)

9261/2 = 4000 * (1 + 1/20)

9261/2*4000 = (20 + 1/20)

9261/8000 = (21/20)

(21/20) res to 3 = (21/20) [ first number res to3 and second one is res to t]

               t = 3    [ bases are same , equate the p yearsowers ]

Hence , Time period is 3 years .

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[ NOTE : 21/20 is res to 3 ]

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