Question

1 fill - in - the - blank
a smartwatch can track workouts for 12 hours or show time for 120 hours. if it tracks workouts for 4 hours and shows time for 30 hours, it will last more hours showing time.

Explanation:

Step1: Calculate used battery (workout)

$\frac{4}{12} = \frac{1}{3}$

Step2: Calculate used battery (show time)

$\frac{30}{120} = \frac{1}{4}$

Step3: Find remaining battery

$1 - \frac{1}{3} - \frac{1}{4} = \frac{12}{12} - \frac{4}{12} - \frac{3}{12} = \frac{5}{12}$

Step4: Calculate remaining show time

$\frac{5}{12} \times 120 = 50$

Answer:

50