a) 18 b) 19 c) 17 d) 16 Answer: a Explanation: Let there were x ...
View QuestionIn how many ways a President, VP and Water-boy can be selected from a group of 10 people.
a) 10C3 b) 10P3 c) 240 d) 360 Answer: b Explanation: We are selecting three ...
View QuestionA question paper consists of three sections 4,5 and 6 questions respectively. Attempting one question from each section is compulsory but a candidate need not attempt all the questions. In how many ways can a candidate attempt the questions?
a) 209 b) (4!-1) × (5!-1) × (6!-1) c) 119 d) 29295 Answer: d Explanation: ...
View QuestionIn how many ways can 15 people be seated around two round tables with seating capacities of 7 and 8 people?
a) 15! × 8! b) 7! × 8! c) 15C7 × 6! × 7! d) 2 × ...
View QuestionHow many number of times will the digit 7 be written when listing the integers from 1 to 1000?
How many number of times will the digit 7 be written when listing the integers from 1 to ...
View QuestionHow many four letter distinct initials can be formed using the alphabets of English language such that the last of the four words is always a consonant?
a) 263 × 21 b) 26 × 25 × 24 × 21 c) 25 × 24 × 23 × ...
View QuestionA college has 10 basketball players. A 5 member’s team and a captain will be selected out of these 10 players. How many different selections can be made?
a) 1260 b) 210 c) 10C6 × 6! d) 10C5 × 6 Answer: a ...
View QuestionHow many positive integers ‘n’ can be form using the digits 3, 4, 4, 5, 6, 6, 7 if we want ‘n’ to exceed 60,00,000?
a) 320 b) 360 c) 540 d) 720 Answer: c Explanation: As per the given condition, ...
View QuestionWhile packing for a business trip Mr. Debashis has packed 3 pairs of shoes, 4 pants, 3 half-pants,6 shirts, 3 sweater and 2 jackets. The outfit is defined as consisting of a pair of shoes, a choice of “lower wear” (either a pant or a half-pant), a choice of “upper wear” (it could be a shirt or a sweater or both) and finally he may or may not choose to wear a jacket. How many different outfits are possible ?
While packing for a business trip Mr. Debashis has packed 3 pairs of shoes, 4 pants, 3 half-pants,6 ...
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