CM) of solve the following questions. of the cost of 6 pencils is 7 72 to find the cost 12 pencils ?
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Answer:
144 is cost of 12 pencils
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HERE IS YOUR ANSWER :
Cost of 8 pens and 4 pencils :-
Let the cost of 1 pen be x and 1 pencil be y.
---》6x +12y =72
÷ by 6
----》x +2y = 12
----》x = 12 - 2y - - -(1)
Wanted --》 8x + 4y
By substituting (1) in wanted you can get the answer.
PLS MARK MY ANSWER THE BRAINLIEST ONE.
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