Question
In a game, a coin is tossed 4 times. ‘A’ wins if the
number of heads is equal to the number of tails. What is the probability that ‘A’ wins?Solution
Total number of outcomes = 2 4 = 16
Favourable outcomes (2 heads and 2 tails) = C(4,2) = 6
Probability that ‘A’ wins = 6/16 = 3/8
More Probability Questions
Evaluate: 25 − 4 × (3 + 2) ÷ 5
What will come in the place of question mark (?) in the given expression?
? ÷ (33 - 12 X 2) = (24 + 50 - 38) ÷ ?
12.5% of 384 - 16.66% of 66 = √16 + √? + 22
245 + (45 ÷ 3 + 5) × 6 - 125 = ?
- Evaluate: 168 ÷ 12 × 5 + 190 – 20% of 450
What value should come in the place of (?) in the following questions?
√16 * ? = √144 + (18 * 4 ÷ 3)
1885 ÷ 64.98 + 7.29 + ? = 69.09
What is the value of (152+82) ÷17
- What will come in place of (?), in the given expression.
(81 ÷ 9) + (121 ÷ 11) + (64 ÷ 8) = ? √(24 × 5 ÷ ?) × 4 = 56 + 34 – 10
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