alleryتین لائٹس ہر 48 s، 72 s اور 108 s میں تبدیل ہوتی ہیں۔ کتنے سیکنڈ کے بعد وہ دوبارہ ایک ساتھ تبدیل ہوتے ہیں؟
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، تو LCM 2^4 x 3^3 = 432 ہے۔
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