If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a=? a) 2 b) 3 c) 4 d )1
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The answer is c) 4
LCM of a and 18 =( a×18)/HCF of a and 18
=> 36= 18a /2
a= 72/18
a= 4
LCM of a and 18 =( a×18)/HCF of a and 18
=> 36= 18a /2
a= 72/18
a= 4
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