Question

15 workers can build a wall in 48 hours how many workers build be required to do the same job in 30 hours

Answer 1

Hey there,

15 workers----48 hours

1 worker----15*48 hours

30 workers----15*48/30 hours

15*48/30

=48/2

=24 hours

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Answer 2

number of workers=15
time taken=48
workers=?
time taken=30
15*48\30
=21
answer=21 workers can do in 30 hours