Find out the missing number
2 3 1 2 3 4 4 5 5 6 6 7 30 43 51 ?
The answer is 64 . Maybe
Find the missing number. 3 2 = 7, 5 4 = 23, 7 6 = 79, 10 9 = ?
If the following is true, can you find the value of (4 + 9)?
7 + 7 = 2 8 + 8 = 4 8 + 5 = 1 6 + 9 = 3 10 + 11 = 9
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.
