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Aarcha PK

· started a discussion

· 1 Months ago

how this 100 came in denominator?

Question:
What sum of money will amount to Rs.1,768 in 3 years at simple interest in the rate of interest for the three years are respectively \(2\cfrac{1}{4}\)%,\(3\cfrac{1}{2}\)% and \(4\cfrac{3}{4}\)%.
Options:
A) Rs.160
B) Rs.1,625
C) Rs.1,600
D) Rs.1,400
E) None of these.
Solution:
\(2\cfrac{1}{4}+3\cfrac{1}{2}+4\cfrac{3}{4}\)%=\(10\cfrac{1}{2}\)%
Therefore, P=\(Rs.\cfrac{1768\times100}{100+(10\cfrac{1}{2})}\,\,\,\,\,\,=Rs.1600\)

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