Question
A bag contains 6 balls of which 3 are red and 3 are
black. They are drawn successively without replacement. What is the probability that colors are alternate?Solution
We can choose balls as black, red or red black alternately, Required probability = 2 × (3/6 × 3/5 × 2/4 × 2/3 × 1/2 × 1) = 1/10
How many meaningful words (more than 3 letters) can be formed using the letters of the given word 'DESIGNATION' ?
Six family members are sitting in a row. Ana is sitting towards immediate left of Ben and immediate right of Cen. Cen is sitting to immediate right of F...
In the following question, select the word which can be formed using the letters of the given word.
UNMORAL
Which among the following words can be formed using the letters of the given word only once?
PLACEMENT
- Which among the following words cannot be formed using the letters of the given word "CHOCOLATE" using each letter only once?
How many such pair(s) of letters are in the word “ABNORMAL” which has as many letters between them (both forward and backward) as in the English alp...
In the following question, select the word which can be formed using the letters of the given word.
SUSCEPTIBLE
Which of the following words cannot be formed by using the letters of the word ‘ INSTRUCTION ’?
Statements: H > E = Z ≤ L = R > S ≥ N = W
Conclusion
I: W < L
II: R ≥ E
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
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