Question
Dravid who is playing a game with his younger brother threw
a dice three times. What is the probability of getting at least four on each attempt?Solution
There are six numbers on a dice so when Dravid throws the dice then there can be 6 outcomes.
Now numbers which are greater than or equal to 4 are three, hence total favorable outcomes = 3
Hence required probability when dice is thrown only once = 3/6=1/2
When this process is repeated thrice then the required probability = 1/2 X 1/2 X 1/2 = 1/8
How many coins does Q’s have?
Seven persons G, H, I, J, K, L and M sit in a straight row facing north direction. I sits third to the left of G. H sits adjacent to G. J sits second to...
Five friends, N, O, P, Q and R, are sitting in a straight line. N and O are adjacent to each other. O is between N and P. N is third to the left of Q. Q...
In which of the following statement, the first and second persons are sitting opposite to each other in the final arrangement?
I) PW
...
Who is sitting third to the left of Iti?
How many persons are sitting between H and J when counted to the left of H?
Four of the following five are likes a group find the one that does not likes that group?
Statements:
B ≥ L = C; N ≤ L < O; Q ≥ N < R
Conclusions:
I. B > N
II. N = B
U, V, W, X, Y and Z are sitting around the circular table facing towards the center. V sits second to the left of U. X sits opposite to Z, who is not ad...
Five friends, F, B, W, Z and S, are sitting in a row facing north. F is sitting between Z and W. B is second to the left of W. Who is sitting at the rig...
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