Question

The HCF and LCM of two numbers are 6 and 840 respectively. If one of the number is 42, find the other number.

Answer 1

Answer:

Hope it helps

Step-by-step explanation:

HCF × LCM is = product of two numbers

840 X 6 = 42× x

Let the another number be X

=840×6/42

=120

Answer 2

Answer:

The other number is 120.

Step-by-step explanation:

Given :-

• The HCF and LCM of two numbers are 6 and 840 respectively.
• One of the number is 42.

To find :-

• The other number.

Solution :-

HCF = 6

LCM = 840

★Formula Used :

${\boxed{\sf{HCF\times\:LCM=Product\:of\:two\: numbers}}}$

Let the 1st number be x and the 2nd number be y.

• x = 42 (Given)

According to the formula ,

HCF × LCM = 1st no. × 2nd no.

→ 6 × 840 = x × y

→ 6 × 840 = 42 × y

→ 42y = 6×840

→ y = (6×840)/42

→ y = 120

Therefore, the other number is 120.