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Calculate the number 4740

NUMBERMANIA: Calculate the number 4740 using numbers [5, 5, 2, 5, 70, 944] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

#brainteasers #math #numbermania

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Where are the worst hotels?

Where are the worst hotels?
- Texas, the lone star state.

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Airplane bomb-drop tests

In 1910, the first trials in the U.S. investigating the use of an airplane to drop bombs were conducted by pilot Glenn H. Curtiss. He dropped lead dummy bombs on 500-ft by 90-ft targets from a height of 50-ft. His aim was successful 10 times out of 14 tries. For visibility, the missiles trailed coloured streamers. The tests were observed by Admiral William Wirt Kimball at Lake Keuka, Hammondsport, New York.*

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