Question

It takes 12 identical robots 15 hours to dig a trench. How many
hours would it take 5 robots to dig the same trench ?

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Answer 1

Answer:

6 hour

Step-by-step explanation:

12 identical robot dig a trench in 15 hours

the 5 identical to dig the same in x hour

12/15=5/x

12*x=15*5

=15*5/12

=75/12

=6.02

approximately 6 hours