Problem 12 · 2019 Math Kangaroo
Medium
Fractions, Decimals & Percents
area-fraction
Show answer
Answer: B
Show hints
Hint 1 of 3
Each square is divided into equal little cells, so the black part is just a fraction of those cells.
Still stuck? Show hint 2 →
Hint 2 of 3
For each square, count the black cells over the total cells to get its black fraction.
Still stuck? Show hint 3 →
Hint 3 of 3
Turn the fractions into a common comparison (or decimals) and pick the biggest.
Show solution
Approach: compute the black fraction of each square
- Each square is cut into equal cells, so its black share is (black cells) ÷ (total cells).
- Read off the black fraction of every square and compare them — a square with a coarser grid can still hide a bigger black share.
- The largest black fraction belongs to square B (B).
Mark:
· log in to save