LCM of two numbers is 56 times their HCF, with the sum of their HCF and LCM being 1710. If one of the two numbers is 240, then what is the other number?
Answer & explanation
Correct answer: option 3
LCM + HCF = 170
56HCF + HCF = 1710
57HCF = 1710
HCF = 30
LCM = 1710 - 30 = 1680
Second number = \(\frac{1680 × 30}{240}\) = 210