It takes 25 men to build a wall in 4 hours . How long does it take 100 men to build the same wall

1 hour

Step-by-step explanation:

100 is 4 times more than 25.

1 hours

Step-by-step explanation:

By concept we know it takes a person to complete a job of three person more time. so we shall multiply in this question.

if 25 men takes 4 hours

1 men will take 4 * 25 = 100 hours

100 men takes = ( 100 ÷ 100 ) hours = 1 hours

y/x=18

step-by-step explanation:

b.-4 units

all you   do is count how many times you move