Question

If 40 people can build a wall in 12 days ,how many days will it take 18 people to build the same wall? and show by step by step ​

Answer 1

Answer:

3 men build a wall in 12 days: means 3 men

build (1/12) of a wall in a one day So as the no. Of workers increase more part

Now the no. Of workers have increased to 12 i.e.,

of the wall could be built in a single day...

4 times the initial no of workers(3)

So the wall would be constructed 4 times faster(i.e., 4*(1/12)=4/12) a day

=> (4/12)*x=1 (where x is no of days)

=>x=3 days.

Step-by-step explanation:

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Answer 2

Answer:26 days

Step-by-step explanation:

time taken to build a wall by 40 people : 12 days

time taken to build a wall by 18 people : ?

time taken to build a wall by 1 person : 12 × 40 ÷18

=26 days