3 pencils and 4 pens cost rs 270 while 4 pencils and 3 pens cost rs 150 find the combined cost of pencil and pen
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Answer:
Step-by-step explanation:
Let no. of pencils be x
Let no. of pens be y
3x + 4y = 270
4x + 3y = 150
nasir37:
what is the final ans
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