Calculate the number of ordered triples (A1, A2, A3) such that:
A1 ∪ A2 ∪ A3 = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} A1 ∩ A2 ∩ A3 = ∅
Write your answer as 2a3b5c7d where a, b, c, d are non-negative integers.
Name the place which have only 7 letters. It's 4,5,6,7 are related to a dead cell and the first 1,2,3 are used by ladies.
Guess this Name of a country A. 8 9 10 means also B. 7 8 4 5 means to not do anything C. 6 and 1 refer to one of the articles D. 4 5 6 7 means enthusiasm E. 3 8 9 10 magicians use F. 7 6 3 refers to rules
The below rebus shows us three ways to prevent Coronavirus. Can you name all three?