The teacher in the math class.
– Children, listen to the task! 1 bitcoin costs 15 thousand dollars. Question! How much does 2 bitcoins cost?
– *hands are raised*
– Egorov answers
– Two bitcoins will cost 30 thousand dollars!
– Two for you, Egorov! Two bitcoins will cost 50 thousand dollars! How many times have I said, "Before raising your hand, check the rate!".