10 years later a will be twice as old as B and 5 years ago a was three times as old as B what are the present age of a and b
sanya44:
its imp. plz ans. this ques
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5 years ago
a-5=3(b-5)
a-5=3b-15
a=3b-10
10years later
a+10=2(b+10)
a+10=2b+20
a=2b+10
a=2b+10
a=3b-10
2b+10=3b-10
2b+20=3b
b=20
a=2b+10=2×20+10
=40+10=50
a=50
b=20
a-5=3(b-5)
a-5=3b-15
a=3b-10
10years later
a+10=2(b+10)
a+10=2b+20
a=2b+10
a=2b+10
a=3b-10
2b+10=3b-10
2b+20=3b
b=20
a=2b+10=2×20+10
=40+10=50
a=50
b=20
i think this will help you
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