JEE Mathematics Permutation and Combination MCQs Set C
Question: If 1/9! + 1/10 ! = x/11! then the value of x is - a) 121 b) 123 c) None of these d) 125 Answer: 121 Question: The number of different words (meaningful or meaningless) can be formed by taking four different letters from English…
JEE Mathematics Permutation and Combination MCQs Set B
7. How many different nine digit numbers can be formed from the number 22,33,55,888 by rearranging its digits so that the odd digits occupy even positions ? (a) 16 (b) 4 (c) 60 (d) 5 8. The number of arrangements that can be made out of the letter of the…
JEE Mathematics Permutation and Combination MCQs Set A
(A) ab, b, ac are in A.P. (B) ab, b, ac are in G.P. (C) b2 = a(b + c) (D) None of these. Ans = C 14. In a college of 300 students, every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspapers is…