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On the digital clock the time is 3:47 the sum of numbers is 14. After how many minutes the sum will be 20

Respuesta :

192. You want to find a sum of twenty. So take x:yz as your time. You know that you want to make x be as close to the value as the time given so we try to increase the values of y and z. the time that the sum is twenty is 6:59

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