Question

If LCM(x, 18) =36 and HCF(x, 18) =2, then r is (a) 2 (b) 3 (c) 4 (d) 5​

Answer 1

Please refer to picture

Answer 2

Answer:

x = 4 (option c)

Step-by-step explanation:

HCF(x, 18) = 2

LCM(x, 18) = 36

a = x

b = 18

we have a formula

HCF * LCM = a * b

2 * 36 = x * 18

x = 2 * 36/18

x = 4  (option c)