Question

Monica is playing a knocking pins game in a fair. She will get $3$ points if she knocks over orange pin and $4$ points for blue pins. To play, it costs 0.75$foreachattempt.IfMonicaknocksover$p$orangepins,theexpression$3p + 4(12 - p)$ represents the total number of points she earns. How much did Monica spend, in dollars, for playing this game?

• A. $3$
• B. $4$
• C. $9$
• D. $2$

Answer 1

The correct option is C $9$

Given Monica is playing a knocking pins game in a fair.

She will get 33 points if she knocks over orange pin and 44 points for blue pins.

To play, it costs $0.75$0.75 for each attempt.

Monica knocks over pp orange pins, the expression 3p+4(12−p)3p+4(12−p) represents the total number of points she earns

As per total numbers Monica play $P$ for orange pin and

$12-p$ for blue pin

Then total attempt are $p+(12-p)=12$

So Monica spend playing =$12\times$0.75=$9$