81). In how many different ways can the numbers '2256974' be arranged, using each digit only once in each arrangement, such that the digits 6 and 5 are at the extreme ends in each arrangement?
| A). 48 |
| B). 720 |
| C). 36 |
| D). 360 |
|
82). On a shelf there are 4 books on Economics, 3 books on Management and 4 books on Statistics. In how many different ways can the books be arranged so that the books on Economics are kept together?
| A). 967680 |
| B). 120960 |
| C). 5040 |
| D). 40320 |
|
83). In how many different ways can be letters of the word SOFTWARE be arranged in such a way that the vowels always come together?
| A). 13440 |
| B). 1440 |
| C). 360 |
| D). None of these |
|
84). Two girls and 4 boys are to be seated in a row in such a way that the girls do not sit together. In how many different ways can it be done?
| A). 720 |
| B). 480 |
| C). 360 |
| D). 240 |
|
85). In how many different ways can the letters of the word DRASTIC be arranged in such a way that the vowels always come together?
| A). 720 |
| B). 360 |
| C). 1440 |
| D). 540 |
|
86). In how many different ways can the letters of the word 'CASUAL' be arranged?
| A). 36 |
| B). 720 |
| C). 240 |
| D). 360 |
|
87). A dinner party is to be fixed for a group of 100 persons. In this party, 50 persons do not prefer fish, 60 prefer chicken and 10 do not prefer either chicken or fish. Find the number of people who prefer both fish and chicken.
| A). 20 |
| B). 30 |
| C). 40 |
| D). 10 |
|
88). In how many different ways the letters of the word RECTITUDE can be arranged so that vowels come together?
| A). 4302 |
| B). 7200 |
| C). 4320 |
| D). 4430 |
|
89). In how many ways can six different rings be worn on four fingers of one hand?
| A). 10 |
| B). 12 |
| C). 46 |
| D). 16 |
|
90). There are three prizes to be distributed among five students. If no student gets more than one prize, then this can be done in-
| A). 10 ways |
| B). 30 ways |
| C). 60 ways |
| D). 80 ways |
|
