A team of 10 people made 1200m long in 3 days. If the team has 15 people have to make 2400m,how many day they need to finish work?

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Answer 1 · 2018-03-31T09:03:15

#4# days.

As #10# people in #3# days made #1200m# long

#1# person in #3# days will make #1200/10=120m# long

and #1# person in #1# day will make #120/3=40m# long

Therefore #15# people in #1# day will make #40xx15=600m# long

Hence to make #2400m#, #15# people will take #2400/600=4# days