Answer :

Solution :

Time taken by a machine to make a toy will be independent of how many machines are making toys in parallel.

From given data, it takes 7 minutes for a machine to make a toy.

If hundred such machines are running parallel to make a toy each, the time will remain same 7 minutes.

7 machine → 7 toys → 7 minutes

1 machine → 1 toy → 7 minutes

Because one machine takes 7 minute for making 1 toy. So, 100 machines will take 7 minute for making 100 toys.