Question
If a coin is tossed 10 times then what is the
probability of getting three heads?Solution
Total sample spaces = 2¹⁰ Total favourable events N(P) = ¹⁰C₃ Probability (E) = (N(P))/(N(S)) = (¹⁰C₃ )/(2¹⁰) = (¹⁰C₃ )/(2^5. 2⁵) = ((10 × 12 )/(3 × 2))/(32 × 32) = (10 × 12)/(32 × 32) = 15/128
If '+' means '×', '×' means '–', '–' means '÷' and '÷' means '+', then what will come in place of the (?) in the following equation?
9 + ...
Given below are two statements, one is labeled as Assertion(A) and the other is labeled as Reason(R).
Assertion(A): The Portuguese were the fir...
Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
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Three of the following words are alike in a certain manner and one is different. Select the odd word out.
In a certain code language, if BECAME is written EHFCOG, how will CLOSER be written in the same code language?
Select the number from among the given options that can replace the question mark (?) in the following series?
20, 25, 24, 30, 32, 35, ?
What should come in place of question mark (?) in the given series based on the English alphabetical order?
AYF, FUI, KQL, PMO, ?
5 is related to 27 by certain logic. Following the same logic, 7 is related to 51. To which of the following is 4 related, following the same logic?
...
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