EASY
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Earn 100

In a class of 50 students, 28 like pop music and 20 likeclassical music. If 10 students like exactly one of the two types of the music, then find the number of the students who like both kinds of music?

50% studentsanswered this correctly

Important Questions on Miscellaneous

MEDIUM
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IMPORTANT
ln a class of 120 students, students are participating in the Sudoku or crossword classes. The ratio of students who participate in Sudoku to the number of students who participate in crossword is 2:1. Forty-five students do not participate in any of these two. What is the number of students who participate in Sudoku?
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In a group of 120 persons, there are 80 Biharis and40 Punjabis. Further, 70 persons in the group are Muslims and the remaining are Hindus. Then, the number of Biharis who are also Muslims in the group 1s:
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Thirty monkeys went to a picnic. Twenty-five monkeys chose to irritate buffaloes, and 20 monkeys chose to irritate cows. How many monkeys chose to irritate both buffaloes and cows?
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A survey shows that 89% of the Australians like butter, whereas 79% like chocolate. It is known that they like at least one of the two. What is the percentage of Australians who like both butter and chocolate?
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IMPORTANT

The market research department of a certain breakfast cereal firm interviewing 100 persons found that on a certain morning for breakfast

(i) 72 had cereals, 39 had fruits, and 75 had toast.

(ii) 32 had fruits and cereals, 53 had cereals and toast, and 26 had toast and fruits.

(iii) 21 had all the three.

How many of those interviewed had neither cereals nor toast nor fruits?

MEDIUM
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IMPORTANT
It S and T are two sets such that S has 21 elements, T has 32 elements, and ST has 11 elements, how many elements does ST have ?
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In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea. Then, what is the number of persons who take coffee but not tea?
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IMPORTANT
A group of 50 students appeared for Physics and Mathematics examinations. Thirty-eight students passed in Physics and 37 students passed in Mathematics. If 30 students passed in both the subjects, then what is the number of students who failed in both the subjects?