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10 years ago b is twice ofa. now, ratio of a and b is 3:4.what is the total value of a and b? |
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Answer» LET the age of a be 3x hence the age of B be 4x 10 years ago their age will be : 3x-10 for a 4x-10 for b 4x-10=2(3x-10) 4x-10=6x-20 6x-4x=20-10 2x=10 x=10/3=5 hence present age of a be 3x=3×5=15 hence present age of b be 4x=4×5=20 hope it HELPED you |
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