Question

Hcf and lcm of two numbers is 42 and 630 one number is 210, what is second number

Answer 1

Answer:

126

Step-by-step explanation:

product of two numbers= hcf *lcm

one number= hcf*lcm/another number

=42*630/210=126

Answer 2

GIVEN,

HCF= 42, LCM= 630, FIRST NUMBER= 210

TO FIND,

What is the second number

SOLUTION,

we know that the LCM and HCF of the two numbers are- 630 and 42

the given number is 210 and let the other number be X

we know that the relation between HCF(42), LCM(630), number 1(210), number2(X) is,

HCF * LCM= product of the two numbers

let us substitute the values now,

42*630 = 210*X

X= $\frac{42*630}{210}$

solving,

X=  42* 3

X= 126 which is the second number.

HENCE THE TWO NUMBERS ARE 210 AND 126.