4 boys from boys from school A and 6 boys from school B together can set up an exhibition in 5 days, which 5 boys from school and 10 boys from school C together can do in 4 days or 3 boys from school B and 4 boys from school C together can do it in 10 days. Then how many boys from school A can set up the exhibition in one day?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 40
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