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Fab 4 Obj. 3 - Proportional Relatioships
Test Description: 3 Middle school math students will set-up proportional relationships and solve for the unknown value.
Instructions: Answer all questions to get your test result.
1) How much is a 25% mark-up on a $200 cost item?
A
$50
B
$75
C
$100
D
$25
2) What is the % of change: $30 to $36?
A
6%
B
25%
C
12.5%
D
20%
3) An ostrich is 108 inches tall. If its shadow is 162 inches, and an emu standing next to it casts a 90-inch shadow, how tall is the emu?
A
90 inches
B
60 inches
C
194.4 inches
D
162 inches
4) Two rectangular gardens are similar. The area of the larger garden is 8.28 square meters, and its length is 6.9 m. The smaller garden is 0.6 m wide. Find length of small garden.
A
length = 3.45 m; area = 4.14 square meters
B
length = 6.9 m; area = 2.07 square meters
C
length = 3.45 m; area = 2.07 square meters
D
length = 3.45 m; area = 1.97 square meters
5) A jet aircraft can fly 2,500 miles in 4 hours. How far can it fly in one hour?
A
6,250 miles
B
6.25 miles
C
625 miles
D
62.5 miles
6) A recipe uses 6 cups of cheese to serve 30 people. How much cheese is needed for 50 people?
A
18 cups
B
14 cups
C
22 cups
D
10 cups
7) What percent of 286 is 13?
A
3.7%
B
6.8%
C
12.0%
D
4.5%
8) You find out that of 36 people on the coach home the ratio of people who felt ill after the scariest ride to people who felt fine was 1:2. How many people felt ill?
A
6
B
18
C
12
D
3
9) If 10 minutes talk-time costs $2, how much will 7 minutes cost?
A
$1.00
B
$1.04
C
$1.40
D
$1.34
10) An old dolphin in a seaworld aquarium catches three times as many fish as a young dolphin at feeding time. The young dolphin catches 8, how many fish does the old dolphin catch?
A
64
B
16
C
24
D
6
*select an answer for all questions
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