1) The ratio of boys to girls in the school choir is 3:8. If there are 48 boys, how many girls are in the choir? a) 6 b) 128 c) 72 d) 36 2) A grocery store clerk put packages of flour and corn tortillas on a shelf. The ratio of flour to corn was 9 to 11. How many were flour if there are 40 total? a) 18 b) 20 c) 22 d) 80 3) A shop owner offered a 10% discount off the regular price of a mirror. The amount of the discount was $40. What is the regular price of the mirror? a) 800 b) 160 c) 240 d) 400 4) 20% of the customers who bought gas at a gas station made additional purchases. There were 100 customers who bought gas. How many of these 100 customers made additional purchases? a) 50 b) 20 c) 75 d) 30 5) If 15 out of 30 are shaded, what is the percent shaded? a) 50% b) 75% c) 30% d) 15% 6) If 50 out of 100 students chose rock how many students in a class of 400 students would be expected to choose rock? a) 800 b) 1600 c) 2 d) 200 7) Monique earns $20 per hour. How much will Monique earn if she works 60 hours next week? a) 800 b) 30 c) 1200 d) 400

Proportion Applications Practice

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