Question
Among a set of 4 black balls and 3 white balls, how
many selections of 3 balls can be made such that at least 2 of them are black balls?Solution
Selecting at least 2 black balls from a set of 4 black balls in total selection of 3 balls can be 2 black and 1 white balls 3 black and 0 white balls Therefore, our solution expression looks 4C2 × 3C1 + 4C3 × 3C0 6 X 3 + 4 X 1 = 18 + 4 = 22 ways
Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No subst...
A government in which all the powers are concentrated on the hands of officers?
Give a single word that substitutes for the following expression:
One who cannot be corrected or reformed
Give a single word that substitutes for the following expression:
A government ruled by a single person with absolute power
Select the option that can be used as a one-word substitute for the given group of words.
A building where monks live as a community
a stopping of an activity for an agreed amount of time
Select the most appropriate option to substitute the highlighted segment in the given sentence. If there is no need to substitute it, select ‘No subs...
Prevent a person from having or using something.
1.      Churlish
2.      Dash
3.      Retain
4.      Chivalrous
...Select the most appropriate word for the given group of word.
Ode-
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