Q2 of 16 Page 5

The HCF and LCM of two numbers are 9 and 360 respectively if one of the numbers is 45. Write another number.

Given: HCF = 9 and LCM = 360


The first number is 45 and let the second number is A


So applying the formula


HCF × LCM = first number × second number


9 × 360 = 45 × A



A = 72


So, the second number is 72


More from this chapter

All 16 →
1

Find the sum of .

 3

Ratio of two numbers is 4:5 and their LCM is 220. Find the numbers.

 4

Explain whether 3 × 12 × 101 + 4 is a prime number or a composite number.

 5

Can the number 6n, n being a natural number end with the digit 5? Give reasons.