A) 0.5
B) 1.5
C) 1
D) -1
Correct Answer: B
Solution :
Given \[a-b=c+d+6\] \[a+b=c-d-3\] By adding above equations, we get \[2a=c+d+6+c-d-3=2c+3\] \[\Rightarrow \,2a-2c=3\Rightarrow \,2(a-c)\,=3\Rightarrow \,a-c=\frac{3}{2}=1.5\]You need to login to perform this action.
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