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Q.

If an item is bought for Rs.90 at 10% discount, then the marked price is

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Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

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a

Rs.110

b

Rs.95

c

Rs.105

d

Rs.100

answer is C.

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Detailed Solution

Let M.P $= x$

$10 %$ discount of $x = \frac{10 x}{100} = \frac{x}{10}$

$C . P = M . P - d i s c o u n t$

$90 = x - \frac{x}{10} = \frac{9 x}{10}$

$\frac{9 x}{10} = 90$

$x = 90 \times \frac{10}{9} = R s . 100$

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