Question

A fruit seller bought x pears at rupees 20 per kg and y cherries at rupees40 per kg. he sold the pears at rupees 25 per kg and cherries at rupees 50 per kg. write an expression for his total profit .​

Answer 1

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A fruit seller bought x pears at rupees 20 per kg and y cherries at rupees40 per kg. he sold the pears at rupees 25 per kg and cherries at rupees 50 per kg. write an expression for his total profit .

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Cost of 20 kg potatoes of 1st kind = 6× 20 = ₹120

Cost of 30 kg potatoes of 2nd kind = 7× 30 = ₹210

Total cost of 50 kg (20+30) potatoes = 120+210 = ₹330

Gain = 25%

Selling price of 50 kg potatoes = C.P. × (100 + Gain %) / 100

= 330 × (100+25) / 100

= 330 × 125 / 100

= 41250 / 100 = 412.5

•°• Total amount to get the gain of 25% = 412.5 ÷ 50 = 8.25

➻ Hence, he should sell potatoes at the rate of 8.25 per kg.

Answer 2

Cost of 20 kg potatoes of 1st kind = 6× 20 = ₹120

Cost of 30 kg potatoes of 2nd kind = 7× 30 = ₹210

Total cost of 50 kg (20+30) potatoes = 120+210 = ₹330

Gain = 25%

Selling price of 50 kg potatoes = C.P. × (100 + Gain %) / 100

= 330 × (100+25) / 100

= 330 × 125 / 100

= 41250 / 100 = 412.5

•°• Total amount to get the gain of 25% = 412.5 ÷ 50 = 8.25

➻ Hence, he should sell potatoes at the rate of 8.25 per kg.

Step-by-step explanation:

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