The H.C.F. of 9 , 12 , 18 and 21 – McqOptions

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1.	The H.C.F. of 9 , 12 , 18 and 21 is: 10 25 35 40
A.	3 5
B.	252 5
C.	3 1400
D.	63 700
Answer» D. 63 700

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