%
Time per Units
Constant Speed
Weight
100

There are 25 marbles in a jar, 10 of them ar eblue. What percentage of the marbles or blue?

10/25 x 100 = 40%

100

Ben and Lucas start 20 miles apart and move toward each other. Ben bikes at a constant speed of 6 miles per hour, and Lucas jogs at a constant speed of 4 miles per hour. How long does it take until they meet?

2 hours

100

A cyclist rides 45 miles in 5 hours. What is the cyclist’s speed?

9 mi per hour

100

Which weighs more: a kitten or a pineapple?

A kitten weighs 4 pounds, and a pineapple weighs 2 kilograms.

Which one is heavier?
(Hint: 1 pound ≈ 0.45 kilograms)


    • Convert 4 pounds to kilograms: 4×0.45=1.8 kg4 \times 0.45 = 1.8 \text{ kg}4×0.45=1.8 kg
    • The pineapple is heavier because 2 kg > 1.8 kg.
200

A library has 120 books on a shelf, and 30 of them are mystery novels. What percentage of the books are mystery novels?

30/120 x 100 = 25%

200

Emma and Sophia are 15 miles apart and walk toward each other. Emma walks at 4 miles per hour, and Sophia walks at 3 miles per hour. How long does it take until they meet?

2.14 hours (or 2 hours and 8.5 minutes)

200

A train travels 180 miles in 3 hours. What is the train’s speed? (per hour)

60 miles per hour

200

Which weighs more: a soccer ball or a watermelon?

A soccer ball weighs 3 pounds, and a watermelon weighs 1.5 kilograms.

Which one is heavier?
(Hint: 1 pound ≈ 0.45 kilograms)

  • Convert 3 pounds to kilograms: 3×0.45=1.35 kg3 \times 0.45 = 1.35 \text{ kg}3×0.45=1.35 kg
  • The watermelon is heavier because 1.5 kg > 1.35 kg.
300

Mia has finished 60% of a book. She has read 90 pages. How many pages are in the book?

150

300

Jack and Mia are 18 miles apart on a trail. Jack runs at a speed of 7 miles per hour, and Mia cycles at a speed of 5 miles per hour. How long will it take for them to meet if they move toward each other?


  • 1.5 hours

300

A car travels 240 miles in 4 hours. What is the car’s speed?

60 miles per hour

300

Which weighs more: a dog or a suitcase?

A dog weighs 22 pounds, and a suitcase weighs 9.5 kilograms.

Which one is heavier?
(Hint: 1 pound ≈ 0.45 kilograms)

  • Convert 22 pounds to kilograms: 22×0.45=9.9 kg22 \times 0.45 = 9.9 \text{ kg}22×0.45=9.9 kg
  • The dog is heavier because 9.9 kg > 9.5 kg.
400

A construction crew has completed 80% of a road project. They have built 40 miles of road. How long is the entire road?

50 miles

400

Jared runs 4 laps around a track in 5 minutes.

How many minutes per lap?

How many laps per minute?

If jarde runs 16 laps at the same rate, how long will it take?

1.25 minutes per lap

.8 laps per minute

20 minutes

400

A cyclist is riding at a constant speed. The table below shows the distance traveled over time.

(Show Table)

a. What is the cyclist’s speed?
b. Complete the missing distances in the table.

Speed = Distance / time (find ___ miles per hour)

22.5, 40, 37.5

400

Which weighs more: a bowling ball or a loaf of bread?

A bowling ball weighs 12 pounds, and a loaf of bread weighs 5.5 kilograms.

Which one is heavier?
(Hint: 1 pound ≈ 0.45 kilograms)

  • Convert 12 pounds to kilograms: 12×0.45=5.4 kg12 \times 0.45 = 5.4 \text{ kg}12×0.45=5.4 kg
  • The loaf of bread is heavier because 5.5 kg > 5.4 kg.
500

Samantha has saved 25% of the money she needs for a new bicycle. She has saved $75. How much does the bicycle cost?

$300

500

Ella swims 10 laps in 12 minutes.
a. How many minutes per lap is that?
b. How many laps per minute is that?
c. If Ella swims 30 laps at the same rate, how long does it take her?

1.2 minutes per lap
b. 0.83 laps per minute
c. 36 minutes

500

Ben and Lucas move toward each other.

Ben and Lucas start 16 miles apart on a trail and move toward each other. Ben jogs at a speed of 6 miles per hour, and Lucas walks at 2 miles per hour.

How long will it take for them to meet?

  • Answer: 2 hours
  • Solution: (6+2)=8(6 + 2) = 8(6+2)=8 miles per hour; 16÷8=216 \div 8 = 216÷8=2 hours
500

Which weighs more: a pumpkin or a cat?

A pumpkin weighs 6.8 kilograms, and a cat weighs 15 pounds.

Which one is heavier?
(Hint: 1 pound ≈ 0.45 kilograms)

  • Convert 15 pounds to kilograms: 15×0.45=6.75 kg15 \times 0.45 = 6.75 \text{ kg}15×0.45=6.75 kg
  • The pumpkin is slightly heavier because 6.8 kg > 6.75 kg.
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