5. In a two digited number, if the units digit is 7 more than the ten’s digit and sum
of the whole number, then the num

1 thought on “<br />5. In a two digited number, if the units digit is 7 more than the ten’s digit and sum<br />of the whole number, then the num”

1. Let unit digit be X .

   Then; according to the question

   Tens digit = X+2

   Unit digit =X

   So,

   10(x+2)+x=7[(x+2)+x]

   10x+20+x=7(2x+2)

   11x+20=14x+14

   20–14=14x-11x

   6=3x

   X=2

   hope it helps !!!

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