Answer:
III. Addition and Multiplication
Let's assume there's a fourth place too, and fourth place is the one where it's no prize.
4 3 2 1 (4 3 X X)
4 3 1 2 (^ but 3rd and 4th digit exchanged)
4 2 3 1 (4 2 X X)
4 2 1 3 etc.,.
4 1 2 3
4 1 3 2
As you can see, there are six possibilities assuming first swimmer was fourth.
Now, there would be six possibilities if the first swimmer was third, and same goes for second and first.
Thus, 6 x 4 = 24, there are 24 possibilities to award the 3 prizes (plus 1 no-prize)
Simple Mathematical Way:
4 x 3 x 2 x 1 = 4! = 24
There are 24 ways.
Hi there!
To solve this problem, we need to first convert 1.2 m into cm, and then find the area of the square sheet of paper, before dividing it by 2 cm squared pieces of paper to get the answer.
1 m = 100 cm
1.2 m = 120 cm
120 × 120 = 14400
14400 ÷ 2 = 7200
So, your answer is 7200.
Hope this helps!
