Calculate the number 958
NUMBERMANIA: Calculate the number 958 using numbers [4, 3, 9, 6, 31, 552] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 16
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Transcontinental radio telephoneIn 1915, a transcontinental radio telephone demonstration was given in New York City. Speech was transmitted via Arlington, Va. to Mare Island at San Francisco, Cal. (2,500 miles). The same night, speech was also transmitted to Honolulu. |