6 November 2017

• curprev 07:4207:42, 6 November 2017 Prayersmith talk contribs 392 bytes +392 Created page with "In 1 day, <math>x</math> machines can do <math>\frac {1}{3}</math> of the job , and <math>x + 3</math> machines<math> \frac {1}{2}</math> of the job. So <math>3</math> machi..."