A class photograph has to be taken. The front row consists of 6 girls who are sitting. 20 boys are standing behind. The two corner positions are reserved for the 2 tallest boys. In how many ways can t
A class photograph has to be taken. The front row consists of 6 girls who are sitting. 20 boys are standing behind. The two corner positions are reserved for the 2 tallest boys. In how many ways can t
A). 6! � 1440
B). 18! � 1440
C). 18! �2! � 1440
D). None of these
1 answers
Other Questions
1. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers.
Quantity A: From a group of 7 laptops, 6 mobile phones and 8 watches, 4 gadgets are to be chosen such that there is at least one gadget of each type. In how many days can it be done?
Quantity B: 3000
2. If letters of the work KUBER are written in all possible orders and arranged as in a dictionary, then the rank of the word KUBER will be:
3. In how many different ways can the letters of the word 'TROUBLE' be arranged?
4. 2 Men and 1 women board a bus in which 5 seats are vacant, one of these 5 seats is reserved for ladies. A women may or may not sit on the seat reserved for ladies . In how many different ways can the
5. In a monthly test, the teacher decides that there will be there questions, one each from ex. 7, 8 and 9 of the text book. There are 12 questions in ex-7 , 18 in ex-8 and 9 in ex-9. In how many ways ca
6. In a class there are 20 boys and 25 girls. In how many ways can a boy and a girl be selected?
7. In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position ?
8. If there are 15 dots on a circle,how many triangles can be formed?
9. In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?
10. Find the no. ofways in which 4 identical balls can be distributed among 6 identical boxes, if not more than one ball goes into a box?
