Profit and loss

Math and Mental Ability

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A dealer offers a discount of 20% and still makes a profit of 20% and he further allows 4 articles free on the sale of 12 articles. Find the ratio of cost price to market price.

1:2

4:5

3:7

2:5

Explanation:

Solution:
Formula : MP(1 – d%) = CP(1+g%)
MP(80/100) = CP(120/100)
CP/MP = 80/120———(1)
Now,
16 articles given in the cost of 12 articles
MP of one article = total /12——–(2)
CP of one article = total /16———(3)
For one article:
CP/MP= (80/16)/(120/12) = 1/2

By: Pranav Gupta

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