Mr. Jones spends $ 76 on movie tickets for a group of adults and children. How many children’s tickets did he purchase?

[BTGmoderatorDC]

Mr. Jones spends $ 76 on movie tickets for a group of adults and children. How many children’s tickets did he purchase?

(1) Adult movie tickets cost $ 11 each and children’s movie tickets cost $ 7 each.
(2) Mr. Jones bought two more adult tickets than children’s tickets.



OA A

Source: Princeton Review

[swerve]

Mr. Jones spends $ 76 on movie tickets for a group of adults and children. How many children’s tickets did he purchase?

(1) Adult movie tickets cost $ 11 each and children’s movie tickets cost $ 7 each.
(2) Mr. Jones bought two more adult tickets than children’s tickets.



OA A

Source: Princeton Review

From statement 1 we have:
\(11x+7y= 76 \Longrightarrow x=5\) and \(y =3\). Sufficient \(\Large{\color{green}\checkmark}\)

From statement 2 we have:
\(x=2y\). We don't know the individual (adults, children) prices of the tickets. Insufficient \(\Large{\color{red}\chi}\)

Therefore, A