brando14 brando14

21-09-2017
Mathematics

contestada

There were 45 runners to start a race. In the first half of the race 1/3 of them dropped out. In the second half of the race, 3/5 of the remaining runners dropped out. How many runners finished the race ?

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angelanna11 angelanna11

21-09-2017

45•1/3= 15. 45-15=30; 30•3/5= 18. 30-18=12, so only 12 runners finished the race

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