Question

20 women can build a wall 40m long and 6m high in 12 days then how many women are required to build another wall which is 20 m long and 6m high in 6 days

Answer 1

Answer:

We need 20 women to construct 20 m long , 6 m high and 6 days

Step-by-step explanation:

Consider the data in the tabular form

   Women  :  Length of wall  :  height of wall  :  days    

       20       :             40          :            6            :       12

        x         :            20           :            6            :        6

Since

number of women directly proportional to length of wall and height of wall but inversely proportional to days

So

     20 / x = (40 / 20) × (6 / 6) × (6 / 12)

     20 / x = (2) × (1) × (1 /2)

     20 / x = 1

             x = 20

So we need 20 women to construct 20 m long , 6 m high and 6 days