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January 30, 2015

January 30, 2015

Posted by **Nicholas** on Monday, September 7, 2009 at 8:40pm.

- Math -
**MathMate**, Monday, September 7, 2009 at 10:14pmLet the fourth digit be x

First digit = 2x

Second digit = 2(2x) = 4x

Third digit = x/2

Thus x+2x+4x+x/2 = 15

15x/2=15

x=2

Thus the number is (2*2)(4*2)(2/2)(2)

= 4812

- Math -
**gays**, Sunday, September 30, 2012 at 12:45pma four digit number equals the sum of twice of its reversed and half of it. also its first digit is 4 times the last digit and second digits is 7 times the 3rd digit .the sum of four digits of the number is ?

- Math -
**Anonymous**, Thursday, December 20, 2012 at 7:49amI am a four digit number with 6 hundreds and 5 ones .the sum of all my digits is 15 what am I.

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