Question

The hcf and lcm of two numbers are 9 & 90 respectively . If one number is 18, find the other

Answer 1

Answer:

45

Step-by-step explanation:

The product of 2 numbers is product of LCM and HCF

Let the number be x

9*90=18*x

then x=9*90/18 =>45

Answer 2

Answer:

Answer:

Given :-

The HCF and LCM of two numbers are 9 and 90 respectively.

One number is 18.

To Find :-

What is the other number.

Solution :-

Let, the other number be x

Given :

HCF = 9

LCM = 90

One number = 18

We know that,

★ One number × Other number = HCF × LCM ★

★ One number × Other number = HCF × LCM ★According to the question by using the formula we get,

↦ 18 × x = 9 × 90

↦ 18x = 810

↦ x =810/18

➠ x = 45

➠ x = 45Hence, the other number is 45

$therefore$

The other number is 45 .

The other number is 45 .Let's Verify :

⇒ 18 × x = 9 × 90

Put x = 45 we get,

⇒ 18 × 45 = 9 × 90

⇒ 810 = 810

➦ LHS= RHS

Hence, Verified ✔