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Question
A man bought 25a articles at 30p paisa each and sold them at 20q paisa each. Find his profit in rupees.
Solution
Cost price of 25a articles = 25a x 30p
Selling price of 25a articles = 25a x 20q
Now,
Profit = Rs.`(25"a" xx 20"q" - 25"a" xx 30"p")/(100)`
= `(50"a"(10"q" - 15"p"))/(100)`
= Rs.`("a"(10"q" - 15"p"))/(2)`
As per the data: P = Rs.`("a"(10"q" - 15"p"))/(2)`.
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