A shopkeeper buys some pens at 8 per pen and the same no. of pencil at 6 ruppees per pencil .He makes a 10% profit on the pens and a 20% profit on the pencils. At the end of day, all the pencils are sold out and he makes a profit of 320. Find the number of pens purchased
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Answer:
Let no of pens = x
No of pencils = No of pens
No of pencils = x
Profit
(8x × 10%) +(6x × 20%) = 320
(8x × 10 / 100) +(6x × 20 / 100) =320
(80x + 120x / 100) =320
200x / 100 =320
2x = 320
x = 320/2
x = 160
Step-by-step explanation:
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