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Q.

If HCF of two numbers is 18 and their product is 12960, then find their LCM.


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a

360

b

450

c

900

d

720 

answer is D.

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Detailed Solution

Given that the product of the numbers as 12960 and their HCF is 18.
We know that,
HCF × LCM = Product of the numbers.
Let us assume that the LCM is x.
Then we have,
18×x=12960 x= 12960 18 x=720
So, the value of x is obtained as 720, which we assumed to be the LCM.
Therefore, the LCM of the two numbers is obtained as 720.
Hence, the correct option is (4).
 
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