alleryگھنٹیاں ہر 12، 15 اور 20 منٹ پر بجتی ہیں اور 9:00 AM پر ایک ساتھ بجتی ہیں۔ وہ اگلی بار ایک ساتھ کب بجیں گے؟
A9:30 AM
B10:00 AM
C9:45 AM
D10:15 AM
Answer & Solution
Correct answer: B. 10:00 AM
LCM 12، 15 اور 20 کا 60 منٹ ہے، لہذا وہ اگلا ایک گھنٹہ بعد ملتے ہیں۔
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