Answer Detail: RE: After 10 years A will be twice the age of B...

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After 10 years A will be twice the age of B before 10 years.and now if the difference is 9 years between them then what is the age of B after 10 years

Answer: 49a

February 02, 2006 08:53:13	#8
VIKRAM MAJJARI	Member Since: Visitor Total Comments: N/A
RE: After 10 years A will be twice the age of B...
answer:49let A's present age=xAfter 10 years A's age=10+xLet B's age before 10 years =y-10(present age=y)a/c to problem,10+x=2(y-10)=>x-2y=-30--------------1st eq.alsox-y=9----------------------2nd eqsolving 1st and 2nd eqwe get x=48 and y=39so B's age after 10 years is y+10 i.e; 39+10=49

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