The HCF and LCM of two numbers are 11 and 385 respectively. If one number lies between 40 and 70, then find that number.
Answer & explanation
Correct answer: option 1
HCF × Product of other factors = LCM
11 × (a × b) = 385
a × b = 35
Possibilities of a × b = 5 × 7
∴ Required numbers is:
5 × 11 = 55