Question

Please help me I need this

Answer 1

Option B

Explanation:

Given that there are 6 participants, Two medals are awarded as I and II to 2 persons

The two medals are different

TO find the number of ways of awarding these two medals

Consider the I award. It can be given to any one of 6 persons in 6 ways

After receiving I prize as award, he would be eliminated and remaining persons would be 5

No of ways of distributing II medal to 5 person = 5 ways

Hence total no of ways = 6(5) =30

In other words, this is a quesiton of permutation 6P2 = 30

Answer 2

Option B is correct, i.e. 30 ways.

Explanation:

Given that there are 6 runners at a competition. So it means n = 6.

It says 2 medals are awarded for first and second place. So it means r = 2.

Each medal is different, it means the order matters here. It is the case of Permutations, so we will use nPr formula.

Total number of ways = 6P2 = 6x5 = 30.

Hence, option B is correct, i.e. 30 ways.