R

Radhika Singh • 4.69K Points
Extraordinary Math 

Q. H.C.F of 42, 63 and 140 is ?

  • (A) 14
  • (B) 9
  • (C) 21
  • (D) 7
Correct Answer - Option(D)
Explanation by: Radhika Singh 
H.C.F. of 42 and 63 is 21.
∵ H.C.F of 21 and 140 is 7

∴ H.C.F. of 42, 63 and 140 is 7

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