If (A+B) = 11, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?
If (A+B) = 11, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?
Answer/Solution
5.
Steps/Work
Given A+B = 11 => A = 11 - B --> Eq 1
B+C = 9
C+D = 3 => D = 3 - C --> Eq 2
Then Eqs 1 + 2 => A + D = 11 - B + 3 - C
=> 14 - (B+C)
=> 14 - 9 = 5.
Option C...
B+C = 9
C+D = 3 => D = 3 - C --> Eq 2
Then Eqs 1 + 2 => A + D = 11 - B + 3 - C
=> 14 - (B+C)
=> 14 - 9 = 5.
Option C...