Advertisements
Advertisements
Question
From 20 raffle tickets in a hat, four tickets are to be selected in order. The holder of the first ticket wins a car, the second a motor cycle, the third a bicycle and the fourth a skateboard. In how many different ways can these prizes be awarded?
Solution
The first price can be awarded in 20 different ways.
- The second prize can be awarded in 19 ways.
- The third prize can be awarded in 18 ways.
- The fourth prize can be awarded in 17 ways.
∴ By fundamental principle of multiplication, the total nimber of ways the prizes can be awarded is = 20 + 19 + 18 + 17 = 74
APPEARS IN
RELATED QUESTIONS
If a polygon has 44 diagonals, find the number of its sides.
In how many ways can a cricket team of 11 players be chosen out of a batch of 15 players?
- There is no restriction on the selection.
- A particular player is always chosen.
- A particular player is never chosen.
The value of n, when np2 = 20 is:
The value of (5C0 + 5C1) + (5C1 + 5C2) + (5C2 + 5C3) + (5C3 + 5C4) + (5C4 + 5C5) is:
A Kabaddi coach has 14 players ready to play. How many different teams of 7 players could the coach put on the court?
A trust has 25 members. In how many ways can a President, Vice President and a Secretary be selected?
Find the number of ways of forming a committee of 5 members out of 7 Indians and 5 Americans, so that always Indians will be the majority in the committee
A committee of 7 peoples has to be formed from 8 men and 4 women. In how many ways can this be done when the committee consists of at least 3 women?
A polygon has 90 diagonals. Find the number of its sides?
Choose the correct alternative:
`""^(("n" - 1))"C"_"r" + ""^(("n" - 1))"C"_(("r" - 1))` is
