Question

A shokeeper buys some pens at 3 for ₹30 and an equal number at 4 for ₹48 . he sells them at 5 for ₹ 56 find his gain or loss percent
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Answer 1

Step-by-step explanation:

Let fruitseller buys x oranges at the rate of 4 for a rupee & x oranges at the rate of 5 for a rupee.

hence total buying cost = (x/4 + x/5) rupees.

taking LCM, Total buying cost = 9x/20 rupees.

Total number of oranges bought = 2x

Since whole lot of 2x oranges are sold at 9 for 2 rupees.

Hence selling price of 9 oranges = 2 rupees

Hence selling price of 1 orange = 2/9 rupees

Hence selling price of whole lot of 2x oranges = (2/9)×(2x) rupees = 4x/9 rupees.

difference in selling price and buying cost =

(4x/9) - ( 9x/20) = (4/9 - 9/20)x = -x/180 rupees.

Hence fruitseller suffer loss of x/180 rupees.

Loss percentage = { (x/180)÷(9x/20)}×100% = 100/81 % = 1.2345 %

Regards