A bag contains 10 red books, 7 yellowbooks and 7 greenbooks . 3books are drawn randomly. What is the probability that thebooks drawn is not a green book ?
Total number of books = 10 + 7 + 7 = 24 Let S be the sample space. Then, n(S) = number of ways of drawing 3 books out of 24 = 24C3 = `(24 xx 23 xx 22)/ (3 xx 2 xx 1)` = 3036 Let E= event of drawing no green books n(E) = 17C3 = `(17 xx 16 xx 15)/(3 xx 2 xx 1)` = 680 `:.` P(E) = `(n(E))/(n(S))` = `680/3036` = `170/759`
Select the option in which the numbers are not related in the same way as are the number of the following set.
(10, 23, 40)
Select the letter cluster that will replace the question mark (?) in the following series.
VCN, YAQ, BYT, EWW, HUZ, ?
F/N : 30/182 : : H/P : ?
If FIT = 6920 and FIGHT = 697820, then FIGHTER =
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
M/14 : O/12 : : U/6 : ?
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
If 64 # 98 = 74 and 37 # 67 = 48, then 44 # 95 = ?
Choose another pair of words with the same relationship as the one given below.
Backstroke: ? : : Bouncer: Cricket
Select the set of numbers that is similar to the following set.
(10, 127, 12)