Question

Which shows the correct solution of the equation 1/2 a+ 2/3 b = 50, when b=30 ?

Answer 1

Answer:

Given that.....

1/2a+2/3b=50

and b=30

let

1/2a=x

2/3*30=2*10=20

1/2a+20=50

1/2a=50-20

a=30/1/2

a=30*2/1

a=60

1/2*60=30

Hence,

30+20=50