Question

when a digital clock reads 3:47, the sum of the digits is 14. how many minutes after 3:47 will the sum of the digits be 20 for the first time?
a) 42 b)132 c)192 d) 251 e)301

Answer 1

it is at 6:59
since nothing will work with 4:__ or 5:__
so that is 132 minutes

Answer 2

i would say we could find a clever way to add 6 to it :)

Answer 3

or take and add the values of the minutes and see which one comes first in line