M

Mahesh Chandra • 6.28K Points
Tutor III Math 

Q. The product of HCF and LCM of 18 and 15 is

  • (A) 120
  • (B) 150
  • (C) 175
  • (D) 270
Correct Answer - Option(D)
Explanation by: Mahesh Chandra 
HCF of 18 and 15
18 = 2 x 3 x 3
15 = 3 x 15 = 3
LCM of 18 and 15 = 2 x 3 x 3 x 5 = 90
∴ Product of HCF and LCM of both numbers = 3 x 90 = 270

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