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Total number of artists = 10 + 8 = 18 Let S be the sample space. Then, n(S) = number of ways selecting 4 artists out of 18 = 18C4 = (18 × 17 × 16 × 15)/(3 × 2 × 1) = 3060 Let E= event of selecting 2 dancers and 2 singers n(E) = ¹°C_2×⁸C_2 = (10 × 9 )/(2 ×1) x (8 × 7)/(2 ×1) = 45× 28 = 1260 ∴ P (E) = n(E)/n(S) = 1260/3060 = 7/17
Which among the following symbols should replace the question mark [?] (in the same order from left to right) in the given expression in order to make b...
Statement: A > D = N ; N `>=` Q; Q > S; S < T
Conclusion: I. N > S II. Q `<=` A
...Statements: A ≥ B ≥ Y = Z = M ≥ N ≤ E ≤ F = J
Conclusions:
I. F > Z
II. J ≤ Y
...In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true ...
Statement: X>Y≥W =Z ≥U; U<R, Z<T
Conclusions:
I. W > R
II. T > R
Statements: A $ B @ D & E @ G % H, F & A, G $ J
Conclusions: I. A # H II. D $ J
...Statements: Q > M > Y < N = H ≥ S < V < R ≤ K
Conclusion
I: K > Y
II: N > S
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘MAKEUP’ is arranged in alphabetical order f...
If the expressions G < L ≤ J > B, J ≤ A and G > H are true, which of the following conclusions will be definitely false?
Statements : I = K > N; N ≥ G ≥ H; P = H > F = O
Conclusions :
I. F < K
II. P ≤ N
III. I > P
