in sports day activities of a school three cyclists start together from the same place and can cycle 48km , 60km , and 72km a day round the field . The field is circular , whose circumference is 360km . After how many rounds they all will meet again
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Answer:
30 days
Step-by-step explanation:
The circumferance of the field is 360 km. The distance covered by the first cyclist is 48 km. So first you would divide 360/48 and get 7.5 days. Multiply 7.5 days by 24 hours to convert to hours, and the answer to this is 180 hours. Do this for the other two cyclists. You should get 144 hours for 60 km and 120 hours for 75 km. The Least Common Multiple for 180, 144, and 120 is 720. Convert this back to days, 720/24 = 30. So the answer for this is 30 days. Hope this helped
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