Question
A bag contains 5 red balls, 7 green balls, and 6 blue
balls. Two balls are drawn at random. Find the probability that the two balls are green.Solution
Number of ways of selecting two green balls = 7 Câ‚‚
Total number of balls = 5 + 7 + 6 = 18
Number of ways of selecting two balls = 18 C2â‚‚
Probability = 7 C₂ ÷ 18 C₂ = (7 × 6) ÷ (18 × 17) = 42 ÷ 306 = 7/51
Directions : A word is given in each question and used in three different sentences. You have to choose the sentence(s) in which the word is used correc...
Directions: In each of the following questions, a word has been used in sentences in THREE different ways. Choose the option corresponding to the sente...
Prevent a person from having or using something.
Select the wrongly spelt word.
Directions: In each question below, word is used in four different ways. Choose the option in which the usage of the word is INCORRECT or INAPPROPRIATE....
Tamper
(i) To tamper with a constitution that had so proved its quality seemed not so much a sacrilege as a folly.
(ii) At least he was tr...
Given below is a word, followed by three sentences that consist of that word. Identify the sentences(s) that best express( es) the meaning of the wor...
Select the wrongly spelt word.
Select the word which means the same as the group of words given.
A large number of fish swimming together
Directions: In the given question, a word has been mentioned and there are three ways in which the word has been used in either similar or different wa...
Relevant for Exams:
