Multiple choice

A contract is to be completed in 52 days and 125 identical robots were employed, each operational for 7 hours a day. After 39 days, five-seventh of the work was completed. How many additional robots would be required to complete the work on time, if each robot is now operational for 8 hours a day?

  1. 132

  2. 6

  3. 133

  4. 7

Reveal answer Fill a bubble to check yourself
D Correct answer