There is 30 birds we have to fly it in 5 times but with out any pair?
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Step-by-step explanation:
Start 30 flight 1:3 pigeons (27 left) Flight 2:5 pigeons (22 left) Flight 3:7 pigeons (15 left) Flight 4:5 pigeons (10 left) One pigeons comes back, which makes 11
Flight 5:11 pigeons
End: 0
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Answer:
there hae 30 birds
1st. time fiy 17 birds
2nd. time fiy 5 birds
3rd. time fiy 3 birds
4rd. time fiy 5 birds
5rd. time fiy 0 bird
Step-by-step explanation:
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