Question

HCF of 9 ab , 18 bc and 30 abc is ----

Answer 1

Answer:

HCF is 3b

Step-by-step explanation:

9ab = 3 x 3 x a x b

18bc = 2 x 3 x 3 x b x c

30abc = 2 x 3 x 5 x a x b x c

HCF = 3 x b = 3b (because they are common in both)