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Maths Puzzle
Q. A fair coin is tossed 10 times. What is the probability that 2 heads do not occur consecutively?
Option
A)1/2^4
B)1/2^3
C)1/2^5
D)None of these
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Others Other Question
Q. In a room there are 7 persons. The chance that two of them were born on the same day of the week is
Opyion
A)109=80/7^5
B)2160/7^5
C)540/7^4
D)None of these
Q. One bag contains 5 white and 4 black balls.Another bag contains 7 white and 9 black balls.A ball is transferred from first bag to second and then a ball is drawn from the second bag.Find the probability that the ball drawn is white.
Option
A)7/18
B)5/9
C)4/9
D)11/18