LCM and HCF of two numbers are 90 and 15 respectively. If the sum of the two numbers is 75, then find the smallest number?
Answer & explanation
Correct answer: option 1
LCM = HCF (ab) HCF (a + b) = 75
90 = 15 (ab) 15 (a + b) = 75
ab = 6 a + b = 5
Let, a = 2, b = 3
Therefore, smallest no. = 15 × 2 = 30