arjun spent 12 to buy some pens and pencils.the cost of pens and pencil are in the ratio 3:2.
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cost of pens =7.2 and of pencils =4.8
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pen : pencil = 3: 2
3x+2x =5x
5x=12
x =12/5 =2.4
so 3x = 3×2.4 =7.2
2x= 2×2.4=4.8
3x+2x =5x
5x=12
x =12/5 =2.4
so 3x = 3×2.4 =7.2
2x= 2×2.4=4.8
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