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Question

If the HCF and LCM of two numbers are given as 5 and 100 and one of the numbers is 20. Then what is the other number?


A
20
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B
15
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C
10
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D
25
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Solution

The correct option is D 25
If HCF and LCM are given, then we can find the numbers.
The product of two numbers = Product of their HCF and LCM.
So, 20 × other number = 5 × 100

Other number = 25


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