Question

The lcm and hcf of the two numbers are 840 and 14 respectively and if one of the numbers is 42 then the other number is ?

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Given :

The LCM and HCF of the two numbers are 840 and 14 respectively

To find :

If one of the numbers is 42 then the other number is ?

Step-by-step explanation:

Let q the second number.

Either you know the following theorem:

$[LCM(x,y)*HCF(x,y)=x*y]$

and apply it to q and 42:

[42q=840*14]

Therefore $q=840*14/42=280$

Hence ;

the second number is 280 .

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