Every resident of a city can speak Hindi or English. If 75 % of the population speaks Hindi and 60% speaks English, then what percentage can speak both the languages ?

(a ⊓ bc)⊓ (ac ⊓ b)

if not then how this set ans write because question is write in this way {1,3,3,3,5,5,5,5},{5,3,1}

Let X : [0,1] → R. Find inverse images of all intervals [a,b] for X(x) = 2 *1[0,½) (x) + 3 * 1[½,1] (x)   Can someone please provide a solution to this

Are the above sets equal?Explain why? EXPLain why as well if they are not equal.

Let N^N(Nautral Numbers)={f:f|N->N}.   a. Give two elements of N^N   b. Prove that Aleph Zero <|N^N|

for example if A = {a,b,c} then all possible subsets are {a}, {b}, {c}, {a,b}, {a,c}, {b,c},{a,b,c} and combinations of subsets which cover the original set are: {{a},{b,c}} and {{a},{b},{c}} and...

P U M n M P U M - N P U M N U M P n M

Let S={n∈N | n=5a+9b for some a∈N and b∈N} list all the elements of the set N-S

Consumer Surveys. In a survey of 180 customers conducted in a shopping mall, 100 customers indicated that they buy Apples, 125 customers indicated that they buy Bananas, and 64 indicated that...

A survey of 100 school children was taken to determine how they liked their ice cream. It was found that: 55 like vanilla,90 liked at least one of the flavors 50 do not like chocolate,35 liked...

Let A, B and C be different sets containing letters of the alphabet. Explain why there must exist some letter that is either contained in exactly one of the sets or contained in exactly two...

I know and understand what natural numbers are, but what does it mean when the natural number symbol has a + at the top, in the position the squared number would be. Can't seem to find information...