The LCM of two numbers is 840 and their HCF is 7. If one of the numbers is 56, find the other.
Answer & explanation
Correct answer: option 3
LCM of two numbers is 840 and their HCF is 7
⇒ Let the other number be x
⇒ According to the question
⇒ LCM × HCF = 56 × x
⇒ 840 × 7 = 56 × x
⇒ x = 105