A basket contains 3 yellow, 5 purple and 3 red flowers. If 3 flowers are drawn at random, what is the probability that all are of different colour?
Total number of flowers = 3 + 5 + 8 = 11 Let S be the sample space. Then, n(S) = number of ways of drawing 3 flowers out of 11 = ¹¹C₃ = (11 × 10 × 9)/(3 × 2 × 1) = 165 Let E= event of drawing 3 flowers of the different colour n(E) = ³C_1 × ⁵C_1 × ³C_1 = 3 × 5 × 3 = 45 ∴ P (E) = (n(E))/(n(S)) = 45/165 = 3/11
In this question two statements and the two conclusions related to them have been given in the form of i and ii, assuming that the statements given in t...
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Select the word-pair in which the two words share a different relationship from that shared by the two words in the rest of the word-pairs.
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
EBD, JGI, ?, TQS, YVX
Arrange the following in a logical and meaningful order.
I. Kamet
II. Kanchenjunga
III. Nanda Devi
IV. Saltoro Kangri
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