Problem 18 · 2013 Math Kangaroo
Stretch
Arithmetic & Operations
total-then-divide
In February 2013, Schnurrli the tomcat slept for exactly three weeks. For how many hours during this month was he awake?
Show answer
Answer: A — 168
Show hints
Hint 1 of 3
February 2013 has 28 days, and three weeks of sleeping is 3 × 7 = 21 days.
Still stuck? Show hint 2 →
Hint 2 of 3
Take the sleeping days away from the whole month to find the awake days.
Still stuck? Show hint 3 →
Hint 3 of 3
Each awake day is 24 hours, so turn the awake days into hours.
Show solution
Approach: awake days times 24
- February 2013 has 28 days; he slept 21 days, so he was awake 28 − 21 = 7 days.
- 7 × 24 = 168 hours awake.
Mark:
· log in to save