Chapter 1 – Sets
In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages ?
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Oct
In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages ? 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages ? 50 people speak French In a [...]
In a group of 65 people, 40 like cricket, 10 like both cricket and tennis. How many like tennis only and not cricket? How many like tennis?
13
Oct
In a group of 65 people, 40 like cricket, 10 like both cricket and tennis. How many like tennis only and not cricket? How many like tennis? 10 like both cricket and tennis. How many like tennis only and not cricket? How many like tennis? 40 like cricket In a group of 65 people October [...]
In a group of 70 people, 37 like coffee, 52 like tea and each person likes at least one of the two drinks. How many people like both coffee and tea?
13
Oct
In a group of 70 people, 37 like coffee, 52 like tea and each person likes at least one of the two drinks. How many people like both coffee and tea? 37 like coffee 52 like tea and each person likes at least one of the two drinks. How many people like both coffee and [...]
If X and Y are two sets such that X has 40 elements, X∪Y has 60 elements and X∩Y has 10 elements, how many elements does Y have?
13
Oct
If X and Y are two sets such that X has 40 elements, X∪Y has 60 elements and X∩Y has 10 elements, how many elements does Y have? how many elements does Y have? If X and Y are two sets such that X has 40 elements X∪Y has 60 elements and X∩Y has 10 [...]
If S and T are two sets such that S has 21 elements, T has 32 elements, and S ∩ T has 11 elements, how many elements does S ∪ T have?
13
Oct
If S and T are two sets such that S has 21 elements, T has 32 elements, and S ∩ T has 11 elements, how many elements does S ∪ T have? and S ∩ T has 11 elements how many elements does S ∪ T have? If S and T are two sets such [...]
In a group of 400 people, 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English?
13
Oct
In a group of 400 people, 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English? 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English? In a group of 400 people October 13, 2021 Category: Chapter 1 - [...]
If X and Y are two sets such that X∪Y has 18 elements X has 8 elements and Y has 15 elements; how many elements does X∩Y have?
13
Oct
If X and Y are two sets such that X∪Y has 18 elements X has 8 elements and Y has 15 elements; how many elements does X∩Y have? If X and Y are two sets such that X∪Y has 18 elements X has 8 elements and Y has 15 elements; how many elements does X∩Y [...]
If X and Y are two sets such that n (X) = 17, n (Y) = 23 and n ( X ∪ Y ) = 38 , find n ( X ∩ Y )
13
Oct
If X and Y are two sets such that n (X) = 17, n (Y) = 23 and n ( X ∪ Y ) = 38 , find n ( X ∩ Y ) find n ( X ∩ Y ) If X and Y are two sets such that n (X) = 17 n [...]
Fill in the blanks to make each of the following a true statement:
13
Oct
Fill in the blanks to make each of the following a true statement: Fill in the blanks to make each of the following a true statement: October 13, 2021 Category: Chapter 1 - Sets , Maths , NCERT Exemplar Class 11 ,
If U = {1, 2, 3, 4, 5,6,7,8, 9}, A = {2, 4, 6, 8} and B = {2, 3, 5, 7}. Verify that.
13
Oct
If U = {1, 2, 3, 4, 5,6,7,8, 9}, A = {2, 4, 6, 8} and B = {2, 3, 5, 7}. Verify that. 2 3% 4 5 6 7) 7}. Verify that. 8 8} and B = {2 9 A = {2 If U = {1 October 13, 2021 Category: Chapter 1 - Sets [...]