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दर 48 s, 72 s आनी 108 s तीन लायटी बदलतात. कितल्या सेकंदां उपरांत परत एकठांय बदलतात?

A324
B864
C432
D216
Answer & Solution
Correct answer: C. 432
48 = 2 ^ 4 x 3, 72 = 2 ^ 3 x 3 ^ 2, 108 = 2^2 x 3^3, देखून LCM हें 2^4 x 3 ^ 3 = 432.
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