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Leona [35]
2 years ago
6

Really urgent!!!!

Mathematics
1 answer:
Pie2 years ago
7 0

Answer:

Step-by-step explanation:

Find the lowest common multiple between the numbers

35 = 5×7

40 = 2³×5

42 = 2×3×7

So the lowest common multiple is:

2³×3×5×7 =840 minutes

840 minutes is 14 hours so the next time they are all at the interchange is 2020 hours.

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