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प्रश्न
An article is sold for ₹ 555 at a loss of `7 1/2%`. The cost price of the article is ________
उत्तर
₹ 600
Explanation;
Hint:
Given selling price is ₹ 555 and loss `7 1/2%`
as per formula
S.P = `((100 - "loss"%))/100 xx "C.P"`
by substituting, we get
555 = `((100 - 7 1/2))/100 xx "C.P"`
∴ 555 = `(100 - 15/2)/100 xx "C.P"`
= `((200 - 15)/2)/100 xx "C.P"`
555 = `(185/2)/100 xx "C.P"`
∴ C.P = `(555 xx 100)/(185/2)`
= `(555 xx 100)/185 xx 2`
= ₹ 600
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