Question

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1) The LCM of two numbers is 210 and their HCF is 10. If one of the
numbers is 30, what is the other number?​

Answer 1

Lcm×Hcf = 1st no. ×2nd no.

210×10=30× x

2100=30x

x = 70

Answer 2

Answer:

Here, the required number is 70.

Step-by-step explanation:

Here, According to question,

=LCM of two numbers =210

=HCF of two numbers=10

=Given number is =30

Now, let the other number be x,

=As it considered that,

=LCM×HCF=1st number ×2nd number

=210×10=30×x

=x=210×10/30

=x=70

Hence, the 2nd number is 70.

Thank you.