SOLUTION: Respected sir, [1] The percent profit made when an article is sold for Rs.78 is twice as when it is sold for Rs. 69.The cost price of the article is ? plz solve my problem...

Question 195049: Respected sir,
[1] The percent profit made when an article is sold for Rs.78 is twice as when it is sold for Rs. 69.The cost price of the article is ?
plz solve my problem...
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The percent profit made when an article is sold for Rs.78 is twice as when it is sold for Rs. 69.The cost price of the article is ?
----------------
Profit = Revenue - Cost
---------
Equations:
2p = 78 - C
p = 69 - C
-----------------
p = 9
----
Substitute into p = 69 - C to get:
9 = 69 - C
Cost = 60Rs
==================
Cheers,
Stan H.

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