You are a four digit number your ones is twice your tens your hundreds is five less than your ones your thousands place is the sum of your tens and hundreds what number are you?

Answer 1

There is no four digit number where the ones is twice the tens, the hundreds is five less than the ones, and the thousands is the sum of the tens and hundreds.

int ones, tens, hundreds, thousands;

for (thousands=1; thousands<10; thousands++) {

/**/ for (hundreds=0; hundreds<10; hundreds++) {

/**/ /**/ for (tens=0; tens<10; tens++) {

/**/ /**/ /**/ for (ones=0; ones<10; ones++) {

/**/ /**/ /**/ /**/ if (ones != 2 * tens) break;

/**/ /**/ /**/ /**/ if (hundreds != ones - 5) break;

/**/ /**/ /**/ /**/ if (thousands != tens + hundreds) break;

/**/ /**/ /**/ /**/ printf ("dd\n", thousands, hundreds, tens, ones);

/**/ /**/ /**/ }

/**/ /**/ }

/**/ }

}