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Question

If HCF of (420,x)=60 and LCM of (420,x)=1260, then x is

A
180
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B
300
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C
210
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D
250
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Solution

The correct option is D 180
LCM×HCF= Product of numbers
60×1260=420×x
x=180
Therefore, A is the correct answer.

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