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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

In what time will ₹ 17800 amount to ₹ 19936 at 6% per annum?

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Question

In what time will ₹ 17800 amount to ₹ 19936 at 6% per annum?

Sum
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Solution

Let the require time be n years

Here Principal P = ₹ 17,800

Rate of interest r = 6% per annum

Amount A = ₹ 19,936

A = P + I

19936 = 17800 + I

19936 – 17800 = I

2136 = I

Simple Interest (I) = `"Pnr"/100`

2136 = `(17800 xx "n" xx 6)/100`

n = `(2136 xx 100)/(17800 xx 6)`

n = `2136/(178 xx 6)`

n = 2 years

Required time = 2 years

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Chapter 2: Percentage and Simple Interest - Exercise 2.4 [Page 44]

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Samacheer Kalvi Mathematics - Term 3 [English] Class 7 TN Board
Chapter 2 Percentage and Simple Interest
Exercise 2.4 | Q 6 | Page 44

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