Question

Amrit buys some pens at. a price of rs.10 per pen. He also buys an equal number of pencils at a price of rs.5 per pencil. by selling them, he makes a 20% profit on pens and 8% profit on pencils. at the end of the day, all pens and pencils and sold out and his profit amounts to rs. 240. find the number of pens he had purchased.​

Answer 1

Answer:

Amrit buys some pens at a price of ₹ 10 per pen.

Cost Price of pens = 10*n

He also buys an equal number of pencils at a price of ₹ 5 per pencil.

Cost Price of Pencils = 10*5 = 50

By selling them, he makes 20% profit on pens and 8% profit on pencils.

Selling Price = 120/100*10*n + 108/100*50

At the end of the day, all pens and pencils are sold out and his profit amounts to ₹240.

Profit = SP - CP

The number of pens he had purchased = 118.

Answer 2

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