In a basket of 10 apples,John wants only 3 apples to give their 3 friends.In how many ways that john...
In a basket of 10 apples,John wants only 3 apples to give their 3 friends.In how many ways that john select apples from a basket?
Answer/Solution
120
Steps/Work
By the statement john wants 3 apples. He needs to select 3 apples out of 10 apples in a basket.
The probability to select is 10C3.
10C3=10!/7!*3!=10*9*8*7!/7!*3*2*1
=120
John have 120 ways to select 3 apples out of 10 apples.
The answer is option A
The probability to select is 10C3.
10C3=10!/7!*3!=10*9*8*7!/7!*3*2*1
=120
John have 120 ways to select 3 apples out of 10 apples.
The answer is option A