Question

A is 2years older than B wyo is twice as old A and C.if the total ages of A,B and C is 27 years,then how old is B

Answer 1

b is 2(a+c)
a is 2 yrs elder so
a = 2a + 2c +2
now 2a +2c +2 + 2a +2c + c = 27
4a +5c +2 = 27
4a +5c = 25
4a +4c + c = 25
2(2a+2c) + c = 25
2(2a+2c) = 25 - c
2a +2c =
$\frac{25 - c}{2}$
This is the answer