If a + b= 12 and b + c = 18, what is the value of a + c?

If a + b= 12 and b + c = 18, what is the value of a + c?

A -4

B -28

C 4

D 28

E 30-2b

Solution

Correct Answer: Option E

here. a+b=12 or, a=12-b b+c=18 c=18-b so,a+c=12-b+18-b or,a+c=30-2b