Question

It took 15 hours for 5 men to build a stairscase. How many hours will it takes 3 men t build a staircase?

Answer 1

Answer:

25

Step-by-step explanation:

Lets solve it the easy way:

Time Men

15h 5

x 3

Now, we multiply the top and bottom 2:

15 multiply by 5

3 multiply by x

So we get:

75/3x

We don't want x on our numbers side so:

x= 75/3

x= 25

And we get our answer 25