Question

the price of a garment has been reduced by 15 percent in a sale to 306 rupees find its original price

Answer 1

the original price will be the multiple of the ratio of 100/85
306×100/85=360

Answer 2

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As we know about percentage.
So,
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Answer is
Original cost of motorcycle = 40000
Cost decreased = 22%

$New \: Cost = 100\% - 22\% \: of \: 40000 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 78\% \: of \: 40000 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{78}{100} \times 40000 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 78 \times 400 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 31200$