Multiple choice

Hazel has 2 pieces of cloth. One is 70 inches wide and other is 90 inches wide. She wants to cut both the pieces into the strips of equal width as wide as possible. How wide should she cut the strips?

  1. 10 inches

  2. 15 inches

  3. 20 inches

  4. 25 inches
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a GCD problem. To find the widest possible strips that both 70-inch and 90-inch pieces can be cut into, find GCD(70, 90). Prime factors: 70 = 2 × 5 × 7, 90 = 2 × 3² × 5. Common factors: 2 × 5 = 10 inches.

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