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Question
The HCF of this pair of numbers is not 1.
Options
13, 17
29, 20
40, 20
14, 15
MCQ
Solution
40, 20
Explanation:
40 = 2 × 2 × 2 × 5
20 = 2 × 2 × 5
The HCF of 20 and 40 is 2 × 2 × 5 or 20.
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