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dolphi86 [110]
3 years ago
10

Bob and rob in ratio 3:4 and their age 4 years ago was 5:7 find their ages

Mathematics
1 answer:
Trava [24]3 years ago
6 0

Answer:

Present Day:

Bob:Rob:Difference

 3   :  4  :        1

 6   : 12  :       2

4 years ago:

Bob:Rob:Difference

    5 : 7 : 2

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