Quantitative Aptitude :: Time and Work - Discussion
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The price of a book in four different shops and the successive discounts offered for the books is given below. Select the option in which the price of the book is the least.
A10%, 5%, and 5% discount on Rs.195
B12.5% and 12.5% discounts on Rs.205
C25%, discount on Rs.200
D10%, and 15% discounts on a marked price of Rs.190
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Asked In ::
we know that there is a formula on discount of m% and n% respectively
which is(m+n-mn/100)%.
According to this for first case,total discount is
18.775%,so after discount the price of the book is Rs.158.38.
For second case total
discount is 23.4375%,so the price of the book after discount is Rs.156.95.
For third
case after discount the pice of the book is Rs.150.
For last case total discount is
23.5% and the price of the book after discount is Rs.145.35.
So ans is option d in which the price is least.
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