Calculate A*B-C+D
Look at the series (10, 19, 36, D, C, A, 520, 1033, 2058, 4107, B, 16397, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C+D!Correct answers: 30
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Pretty normal
A woman went to see her psychiatrist. "I'm really concerned," she said. "The other day I found my daughter and the little boy next door together, naked, examining each other's bodies and giggling."
The psychiatrist smiled. "That's nothing to worry about, it's pretty normal."
"Well, I don't know," said the woman, "It worries me. It worries my daughter's husband too."