Question
The ratio of the number of English books to Hindi books
in a library shelf is 5:4. If 140 Hindi books are written by Pradeep, which constitutes 20% of the Hindi books, then find the difference between the number of English books and Hindi books in the shelf.Solution
Number of Hindi books = 140/0.2 = 700 Number of English books = 700 × (5/4) = 875 Required difference = 875 – 700 = 175
Two dancers Seema and Reema appeared in audition of a dance competition. The probability that seema will be selected in this dance competition is 0.05 a...
The probability of selecting a rotten apple randomly from a heap of 250 apples is 0.20. What is the number of rotten apples in the heap?
...A box contains 6 red balls, 4 blue balls and 2 yellow balls. Two balls are picked at random. What is the probability that both balls are of the same color?
35 defective headphones got packed with 105 non-defective headphones. A customer randomly chooses one headphone. Find the probability that it is defective.
The probability that Kabir clears an interview is (2/5) and the probability that Simran fails is (1/4). Find the probability that both have the same res...
A box contains 6 red, 4 blue, 2 green and 4 yellow pens. If four pens are picked at random, what is the probability that one is green, two are blue and ...
There are (m + 4) red roses, (m + 11) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 5/16, then find the valu...
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 1.3 times that of drawing a white ball, ...
Determine the number of ways to form a Kabaddi team consisting of six players from a group of 7 male players and 5 female players. Specifically, calcula...
Three cards are drawn one after another with replacements from a standard deck of 52 cards. What is the probability of getting the first card a Queen, t...
Relevant for Exams:
