After 12 years seema shall be 3 times as old as she was 4 years ago. Find her present age?
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think that 4 years ago her age is x
so,x+12=3×x
12=3x-x
12=2x
x=12/2
x=6
so her age now is x+4
=6+4
=10
so,x+12=3×x
12=3x-x
12=2x
x=12/2
x=6
so her age now is x+4
=6+4
=10
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