Find number abc
[1762] Find number abc - If 77761 - 2bb91 = a4b7c find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 75 - The first user who solved this task is Sanja Šabović
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Find number abc

If 77761 - 2bb91 = a4b7c find number abc. Multiple solutions may exist.
Correct answers: 75
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Be My Valentine

A guy walks into a post office one day to see a middle-aged, balding man standing at the counter methodically placing "Love" stamps on bright pink envelopes with hearts all over them. He then takes out a perfume bottle and starts spraying scent all over them.
His curiosity getting the better of him, he goes up to the balding man and asks him what he is doing. The man says, "I'm sending out 1,000 Valentine cards signed, 'Guess who?'"
"But why?" asks the man.
"I'm a divorce lawyer," the man replies.
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Gaetano Arturo Crocco

Born 26 Oct 1877; died 19 Jan 1968 at age 90.Italian pioneer in aeronautics and space science who designed revolutionary airships and patented an early cyclic pitch design for helicopter rotors (1906). While the design of helicopters was in its infancy, Crocco recognized that a way to change the pitch cyclically on the blades was needed if a helicopter was to work properly in forward flight. He designed a number of airships in the early part of the 20th century and switched to designing rocket engines in the 1920s. Crocco founded the Italian Rocket Society (1951) and made many contributions to the theory of spaceflight. He calculated that a spacecraft could travel from Earth to Mars, perform a reconnaissance Mars flyby (without orbit), and return to Earth in a total time of about one year.«
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