Question

a clock lost 1 minute and 18 seconds in 39 days. how many seconds did it lose per day?

• \\(1/2\\)
• 2
• 120
• 3
• \\(1/120\\)
• none of these

Explanation:

Convert total time lost to seconds

$$ 1\text{ minute} = 60\text{ seconds} $$

$$ \text{Total seconds lost} = 60\text{ seconds} + 18\text{ seconds} = 78\text{ seconds} $$

Calculate seconds lost per day

$$ \text{Rate} = \frac{78\text{ seconds}}{39\text{ days}} = 2\text{ seconds/day} $$

Answer:

• \(1/2\)
• 2 (Correct answer)
• 120
• 3
• \(1/120\)
• none of these