contestada

If it takes 70 workers 3 hours to disassemble the exhibition rides at a small amusement park, how many hours would it take 30 workers to do this same job? 40 3 11 7 7 3 9 7

Respuesta :

[tex]70 \text{ workers} \longrightarrow 3 \text{ hours}[/tex]

Find 1 worker:

[tex]1 \text{ worker} \longrightarrow 3 \times 70 \text{ hours}[/tex]

[tex]1 \text{ worker} \longrightarrow 210 \text{ hours}[/tex]

Find 30 workers:

[tex]30 \text{ workers} \longrightarrow 210 \div 30 \text{ hours}[/tex]

[tex]30 \text{ workers} \longrightarrow 7 \text{ hours}[/tex]


Answer: It will take 7 hours for 30 workers to do this same job.

Otras preguntas