Word Problem on Unit Rates Associated with Ratios of Whole Numbers Decimal Answers Online Quiz



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Questions and Answers
Q 1 - Donald spent 8 days collecting 13 pounds of cans. What is the rate of collection in pounds per day?

Answer : A

Explanation

Step 1:

Pounds of cans collected = 13

Number of days spent = 8

Step 2:

Rate of collection = $\frac{13}{8} = 1.625$ pounds per day

Q 2 - A programmer worked for 5 hours and earned $96. What is the rate of earnings in dollars per hour?

Answer : C

Explanation

Step 1:

Amount earned = $96

Time in hours = 5

Step 2:

Rate of earnings per hour = $$\frac{96}{5}$ = $$19.20$ per day

Q 3 - A jogger ran 45 kilometers in 7 days. What is the rate he travelled in kilometers per day?

Answer : B

Explanation

Step 1:

Distance run = 45 kilometers

Time taken = 7 days

Step 2:

Rate at which the jogger ran = $\frac{45}{7} = 6.43$ km/day

Q 4 - A machine worked for 4 hours and used 5 kilowatts of electricity. What is the rate of energy consumed in kilowatts per hour?

Answer : D

Explanation

Step 1:

Energy consumed = 5 kilowatts

Time taken = 4 hours

Step 2:

Rate of energy consumption = $\frac{5}{4} = 1.25$ kilowatts per hour

Q 5 - A pencil factory used 52 grams of graphite to make 8 pencils. What is the rate in grams per pencil?

Answer : A

Explanation

Step 1:

Graphite used = 52 grams

Number of pencils made = 8

Step 2:

Rate in grams per pencil = $\frac{52}{8} = 6.5$ grams per pencil

Q 6 - Allen earned $28 for mowing 5 lawns. What is the rate of earnings in dollars per lawn?

Answer : B

Explanation

Step 1:

Amount earned = $28

Number of lawns mowed = 5

Step 2:

Rate of earnings = $$\frac{28}{5}$ = $$5.60$ per lawn

Q 7 - A candy factory used 6 gallons of syrup to make 5 batches of candy. What is the rate of syrup used in gallons per batch?

Answer : D

Explanation

Step 1:

Gallons of syrup = 6

Batches of candy = 5

Step 2:

Rate of syrup used = $\frac{6}{5} = 1.2$ gallons per batch

Q 8 - A ride owner in a fair, charges $25 for entry of 4 people. What is the rate of entry in dollars per person?

Answer : C

Explanation

Step 1:

Amount charged = $25

Number of people = 4

Step 2:

Rate of entry = $$\frac{25}{4}$ = $$6.25$ per person

Q 9 - A tailor used 8 meters of string to make 14 Halloween masks. What is the rate of string used in meters per mask?

Answer : B

Explanation

Step 1:

Length of string used = 8 meters

Number of Halloween masks = 14

Step 2:

Rate of string used = $\frac{8}{14} = 0.57$ meters/mask

Q 10 - It took a pet store 9 weeks to sell 19 pounds of cat food. What is the rate of cat food sold in pounds per week?

Answer : A

Explanation

Step 1:

Weight of cat food sold = 19 pounds

Time taken = 9 weeks

Step 2:

Rate of cat food sold = $\frac{19}{9} = 2.11$ pounds per week

word_problem_unit_rates_associated_ratios_whole_numbers_decimal_answers.htm
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