RRB NTPC Mains or Stage 2 Model Paper 2 with solutions

(b) Let the numbers be 1 K and 2 K.
HCF of 1 and 2 = 1
Hence HCF of 1 K and 2 K = K
Given that HCF of 1 K and 2 K = 16
⇒ K = 16
Hence the numbers are (1 × 16) and (2 × 16) = 16and 32
∴ LCM of 16 and 32 = 32.