Problem 8 · 2012 Math Kangaroo
Easy
Arithmetic & Operations
careful-countingoff-by-one
On the 24th of February 2012 Grandfather's chicks hatched. There are 29 days in February in 2012. How old are the chicks today, on the 15th of March 2012?
Show answer
Answer: D — 20 days
Show hints
Hint 1 of 2
Count the days from 24 February up to 15 March, using that February has 29 days.
Still stuck? Show hint 2 →
Hint 2 of 2
Find how many days from the 24th to the end of February, then add the March days.
Show solution
Approach: count days across the month boundary
- From 24 February to 29 February is 5 days.
- From 1 March to 15 March is another 15 days.
- Altogether that is 5 + 15 = 20 days.
- The chicks are 20 days old.
Mark:
· log in to save