Question

On Monday, the Mars Rover traveled 330 cm. On Tuesday, traveled 180 cm. If the Rover stopped every 15 cm to recharge, how many more times did it need to recharge on Monday than Tuesday?

Answer 1

stopped on Tuesday 180/15 - 1 = 11 times;

stopped on Monday 330/15 - 1 = 21 times;

21 - 11 = 10 more times.

Answer:10.