a and b are friends.

a and b are friends and a is older than b by 2 years .A's father d is twice as old as and b is twice as old as his sister c. the ages of d and c differ by 40 years. find the age of a and b
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1 Answer

a-b=2 (difference of ages), so a=b+2,

d (a’s father)=2a,

c (b’s sister)=b/2,

d-c=40=2a-b/2=2b+4-b/2.

Therefore, 4b+8-b=80, 3b=72, b=24, a=26.

a b c d
26 24 12 52

 

 

 

 

 

 

 

 

 

 

by Top Rated User (1.2m points)

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