The age of A+B is 80 . when A is B then B is 1/3 of A . so, how old are A and B ?
souravsahu49:
Ais 20 and B is60
Yes, you are right
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A+B=80
we , know that B=1/3ofA
then ,A+A/3=80
4A/3=80
4A=240
A=240/4
A=60
A+B=80
60+B=80
B=80-60
B=20
A=60,B=20
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