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Question

Rahul purchased a scooter at (1315)th of its selling price and sold it at 12% more than its selling price. His gain is _____.

A
20
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B
29313
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C
30
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D
38113
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Solution

Let, the initial selling price of scooter be Rs. x

Cost price (C.P) =13x15 ---(1)

It is given that, the scooter again sold by 12% more than its selling price.

i.e., Selling price of scooter at second time,

S.P =x+12% of x

S.P =x+12x100

S.P =100x+12x100

S.P =112x100 ---(2)

From (1) and (2),

Gain = S.P C.P

=112x10013x15

=28x2513x15

LCM of 25,15 is 75

=(28x25×33)(13x15×55)

=84x7565x75

=84x65x75

=19x75

Gain =19x75 --(3)

Now, The Gain percent =GainC.P×100

=19x7513x15×100

=19x75×1513x×100

=191×113×20

=38013

=29313

Gain percent =29313

i.e., In whole transaction, his gain is 29313% .

Hence, Option B is correct.


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