Question

7 machines take 7 minutes to make 7 toys. At the same rate how much time will 100 machines take to make 100 toys?

Answer 1

it's very easy
the answer is 7 minutes.........

Answer 2

Answer:

7 minutes is taken to make 100 toys in 100 machines.

Step-by-step explanation:

Given : 7 machines take 7 minutes to make 7 toys.

To find : At the same rate how much time will 100 machines take to make 100 toys?

Solution :

We can solve the problem by unitary method :

7 machine make 7 toys in = 7 minutes

1 machine make 7 toys in = 7 × 7 minutes = 49 minutes

1 machine make 1 toy in = 49 ÷ 7 minutes = 7 minutes.

So, 1 machine make 100 toys in = 7 × 100 minutes = 700 minutes

Now, 100 machine make 100 toys in = 700 ÷ 100 minutes = 7 minutes.

Therefore, 7 minutes is taken to make 100 toys in 100 machines.