Find a simple discount equivalent to a discount series of 10 %, 20 % and 25 % (in % )

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7.Profit and Loss

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Find a simple discount equivalent to a discount series of $10 \%, 20 \%$ and $25 \%$ (in $\%$)

A

$45$

B

$55$

C

$52$

D

$46$

Solution

A series of discount equivalent to simple discount $=$

$9 \times .8 \times .75 \times M.P$

$(10 \%, 20 \%, 25 \%)=54 \times MP$

$\therefore$ Simple discount $=(100-54) \%$

$=46 \%$

Standard 13

Quantitative Aptitude

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