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If N225.00 yields N27.00 in x years simple interest at the rate of 4% per...

Mathematics
JAMB 2020

If N225.00 yields N27.00 in x years simple interest at the rate of 4% per annum, find x. 

  • A. 3
  • B. 4
  • C. 12
  • D. 17
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Correct Answer: Option A
Explanation

Principal = N225.00, interest = N27.00

Year = x, Rate = 4% 

1 = \(\frac{PRT}{100}\)

27 = \(\frac{225 \times 4 \times x}{100}\) = 2700 = 900T

T = \(\frac{2700}{900}\) 

= 3 years

There is an explanation video available below.


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Explanation Video

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995