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JEE 2020 Mathematics : Permutation and Combination -02 (25.09.2019)
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Question 1
Two teams are to play a series of 5 matches between them. A match ends in a win or loss or draw for a team. Some people forecast the result of each match and no two people make the same forecast for the series of matches. The smallest group of people in which a person forecasts correctly for all the matches will contain n people, where n is
Question 2
Total number of four-digit numbers having all different digits, is equal to
Question 3
The number of ways in which 6 men can be arranged in a row so that three men are standing consecutive, is
Question 4
Total number of ways in which a person can put 8 different rings in the fingers of his right hand is equal to:
Question 5
Value of expression 47C4 + is equal to
Question 6
A convex polygon has 44 diagonals. The number of its sides is equal to:
Question 7
Everybody in a room handshake with everybody else. The total number of hand shake is equal to 153. The total number of persons in the room is equal to:
Question 8
Number of triangles that can be formed joining the angular points of decagon is
Question 9
A class contains 3 girls and four boys. Every Saturday five students go on a picnic; a different group of students is being sent each week. During the picnic, each girl in the group is given a doll by the accompanying teacher. All possible groups of five have gone once, the total number of dolls the girls have got is:
Question 10
The number of all the odd divisor of 3600 is
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May 15JEE & BITSAT