Three wheels can complete 40, 24 and 16 revolutions per minute respectively. There is a red spot on each wheel that touches the ground at time zero. After how much time, all these spots will simultaneously touch the ground again?

Question

নিচের অপশন গুলা দেখুন

• 7 1 2 sec
• 18 sec
• 7 1 2 min
• 18 min

Answer 1

সঠিক উত্তর হচ্ছে: 7 1 2 sec