Question
In a Group of 8 boys and 6 girls, Six children are to be
selected. In how many different ways can they be selected such that at least one boy should be there?Solution
For At least 1 boy we have (1 boy and 5 girls), (2 boys and 4 girls), (3 boys and 3 girls), (4 boys and 2 girls), (5 boys and 1 girl), (6 boys) ∴ Required Number of ways = (8C1 × 6C5) + (8C2 × 6C4) + (8C3 × 6C3) + (8C4 × 6C2) + (8C5 × 6C1) + 8C6 = 48 + 420 + 1120 + 1050 + 336 + 28 = 3002 ways
- In each question, five alternatives are given for the Idiom/Phrase given in bold in the sentence. Choose the alternative which best expresses the meaning o...
The heating system is the bane of my life as it always keeps breaking down.
In each of the following questions, three statements are given with an idiom highlighted in bold. You have to select the answer choice that represents ...
Fill in the blank given below using the correct idiom.Â
Despite their differences, the two colleagues managed to _______________ and collabor...
You are required to identify the words that are contextually similar to the phrase given in bold and mark that as your answer. If none of the options e...
In each of the following questions, an idiomatic expression/a proverb has been underlined – followed by four alternatives. Choose the one which best ...
Don't try to blow smoke , I know the facts very well.
Select the idiom/phrase that most accurately and contextually replaces the bolded segment.
He keeps trying to get the company to reconsider th...
- Select the most appropriate option to substitute the bold segment in the given sentence.
The delay in the project turned out to be beneficial, as i... Choose the correct meaning of the idiom/phrase given below :
be down with
Relevant for Exams:
