Let’s solve each problem one by one. We’re finding
unit rates — that means how much of something happens per 1 unit (like per batch, per minute, per row, etc.).
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Problem 1:
Jessica bakes 112 muffins in 7 batches. How many muffins does each batch contain?
→ Divide total muffins by number of batches:
112 ÷ 7 = 16
✔ Each batch has 16 muffins.
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Problem 2:
Henry reads 90 pages in half an hour. How many pages per minute?
→ Half an hour = 30 minutes
So, 90 pages ÷ 30 minutes = 3 pages per minute
✔ Henry reads 3 pages per minute.
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Problem 3:
Simon arranges 35 cards in 5 rows. How many cards per row?
→ 35 ÷ 5 = 7
✔ Each row has 7 cards.
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Problem 4:
Diana bought 2 dolls for $15. How much did each doll cost?
→ $15 ÷ 2 = $7.50
✔ Each doll costs $7.50.
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Problem 5:
Temperature fell 24 degrees in 6 hours. How many degrees per hour?
→ 24 ÷ 6 = 4
✔ Temperature fell 4 degrees every hour.
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Problem 6:
Four buses carry 260 passengers total. How many passengers per bus?
→ 260 ÷ 4 = 65
✔ Each bus carries 65 passengers.
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Final Answer:
1) 16 muffins per batch
2) 3 pages per minute
3) 7 cards per row
4) $7.50 per doll
5) 4 degrees per hour
6) 65 passengers per bus
Parent Tip: Review the logic above to help your child master the concept of unit rate word problems worksheet 7th grade.