Question

LCM of 21 5 , 21 10 and 21 15 is?

(1). 21 5

(2). 21 15

(3).2130

(4 ). 21 10

A 3 Correct Answer Incorrect Answer
B 1 Correct Answer Incorrect Answer
C 2 Correct Answer Incorrect Answer
D 4 Correct Answer Incorrect Answer

Solution

LCM of 21 5 , 21 10  and 21 15  = 21 15  ( we always take highest power in case of LCM when base is same).

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