Question

a vendor bought oranges at rupees 26 per dozen and sold them at 5 for rupees 13 his gain percent is

Answer 1

cost per orange= 26/12
sp per orange = 13/5

since sp > cp

gain = 13/5-26/12
= 156/60-130/60
= 26/60

gain percent = (26/60)/(26/12)×100
=(12/60)×100
=20%

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Answer 2

Given:

Cost price of 12 oranges= ₹ 26

[1 dozen = 12 units]

Selling price of 5 oranges= ₹13

Selling price of 1 orange= 13/5

Selling price of 12 oranges= (13/5)×12= 156/5= ₹ 31.20

SP>CP

Gain = S.P - C.P

Gain= 31.20 - 26 = ₹ 5.2

Gain% =[( profit/C.P ) × 100]%

Gain % =[ (5.2 /26)×100]%

Gain% = (0.2 × 200)%= 20%

Hence, the gain% is 20%

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Hope this will help you...