Age of chinnu and mini are in ratio 5:2 after 7 years the ratio of age is 4:3.find the age of chinnu 2 years before
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3/4x-3/4=x-3
3/4x-x=-3+3/4
-x/4=-9/4
x=9.
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5:2=5x+2x
4:3=4x+3x
5x+2x+4x+3x=7+2
14x=9
x=9/14 and
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