Question
The LCM of two numbers is 540, and their HCF is 18. If
one of the numbers is 90, find the other number.Solution
We know that the relationship between the LCM, HCF, and the two numbers is: LCM × HCF = Product of the two numbers. Let the second number be x. Therefore, 540 × 18 = 90 × x 9720 = 90x x = 9720 ÷ 90 x = 108. Thus, the other number is 108. Correct option: d
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