Question

a shopkeeper bought 5 pencils for 12 rupees and sold 4 pencils for 16 rupees .if he earns a profit of 64 rupees.find the number of pencils?​

Answer 1

Answer:

cost for each pensils that he buy

12/5=2.4

cost of each pensils that he sold = 16/4=4

profit by each pensil=4.0-2.4=1.6Rs

we would devide total profit from profit by 1 pensil

64/1.6=40 is ans

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