Question : The HCF of the two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:
Option 1: 650
Option 2: 540
Option 3: 810
Option 4: 360

Question

Question : The HCF of the two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:

Option 1: 650

Option 2: 540

Option 3: 810

Option 4: 360

Team Careers360 · Accepted Answer

Correct Answer: 360

Solution : We have,
The HCF of two numbers = 21
and The LCM of two numbers = 840
One number = 49
Let the other number be $x$.
We know the product of two numbers = HCF $ imes$ LCM
⇒ 49$x$ = 21 × 840
$ herefore x$ = $\frac{21 imes840}{49}$ = 360
Hence, the correct answer is 360.

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Question : The HCF of the two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:Option 1: 650Option 2: 540Option 3: 810Option 4: 360

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Question : The HCF of the two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:
Option 1: 650
Option 2: 540
Option 3: 810
Option 4: 360