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The least common multiple of 41.42 and 42.41 is ____________

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The least common multiple of 41.42 and 42.41 is ____________

(a) 42

(b) 41

(c) 84

(d) 41.42

I have been asked this question by my school principal while I was bunking the class.

Question is taken from Number Theory in section Number Theory and Cryptography of Discrete Mathematics

1 Answer

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Correct option is (d) 41.42

For explanation: lcm(41 * 42, 42 * 42) = 41.42.42.41 / 41.42 = 41.42.

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