neododaisabeyhilde neododaisabeyhilde

02-10-2016
Mathematics

contestada

when a digital clock reads 3;47/ the sum of digits is 14. how many minutes after 3;47 will be the sum of digits be 20 for the first time

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Haneefahr13 Haneefahr13

02-10-2016

3:47 = 3+4+7 = 14

20 = 3+8+9 = 3:89

3:47+42minutes=3:86
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