turkey-yks 2014 Q12

turkey-yks · Other · ygs Not Maths
$a , b , c , d$ are distinct real numbers and
$$\begin{aligned} & b + c = d \\ & a \cdot b \cdot c = 0 \end{aligned}$$
Which of the following is true?
A) $a = 0$
B) $b = 0$
C) $c = 0$
D) $a+c=0$
E) $a + d = 0$
$a , b , c , d$ are distinct real numbers and

$$\begin{aligned}
& b + c = d \\
& a \cdot b \cdot c = 0
\end{aligned}$$

Which of the following is true?\\
A) $a = 0$\\
B) $b = 0$\\
C) $c = 0$\\
D) $a+c=0$\\
E) $a + d = 0$