Counting Principle
Trending Questions
Q. A room has 7 doors. In how many ways can a person enter through one door and come out through a different door?
- 30
- 49
- 42
- 36
Q.
The distance between Ambala and Delhi is km m. A car leaves Ambala for Delhi and runs km m in one hour. Another car leaves Delhi for Ambala at the same time and runs km m in one hour. Find the distance between the two cars after one hour.
Q.
The distance from Mumbai to Pune is approximately while the distance from Pune to Kolhapur is . Calculate the total distance Mr Kumar has to travel by train from Mumbai to Kolhapur via Pune.
Q. How many three digit numbers can be formed using the digits 2, 3, 6, 7, 9 with repetition?
- (5)3
- (3)5
- (5)5
- (3)3
Q. According to the Counting Principle, if one event has 'm' possible outcomes and a second event has 'n' possible outcomes, then find the total possible outcomes for the two events occur simultaneously.
- m+n
- m−n
- m×n
- m÷n
Q. Jennifer is preparing for her evening spring-gala where she is the lead singer. She has 4 scarves, 3 hats and 5 pairs of shoes. For her performance, she wants to wear a hat, a scarf, and a pair of shoes. How many ensembles can she make for her evening?
- 12
- 15
- 20
- 60
Q. Charlie wishes to visit a friend's house. From his residence to downtown Chicago, he can take one of four bus lines or seven train lines. From there, he can take one of three bus or five rail services to his friend's house. How many options does he have for getting to his friend's house?
- 99
- 66
- 88
- 77
Q. Given 5 flags of different colors, how many different signals can be generated, if the use of 2 flags one below the other are required to generate the signal?
- 20
- 30
- 24
- 36
Q. George and Chloe are selecting furniture for their living room. They have 5 options for tables, 4 options for couches, and 8 options for ottomans. In how many ways can they furnish their living room, with only one of each kind of furniture?
- 20
- 32
- 40
- 160
Q. Find the total of number of ways of answering 4 multiple choice questions, each having 4 choices?
- 4×4×4×4
- 256
- (4)4
- 128
Q. The number of 5 lettered word, with or without meaning, which can be formed from letters of word CHILD when repetition is not allowed are .