Question

Vijay's grandfather has an old Cuckoo clock. It takes 5 seconds for the "Cuckoo clock" to chime 5 Cuckoos. How long will it take to chime 10 Cuckoos?

• A. 10
• B. 11.25
• C. 15
• D. None of these

Hint:

For chime problems, the total time depends on the number of intervals, which is always one less than the number of chimes.

Answer 1

The Correct Option is B

Step 1: Understand how the chimes work.
If it takes 5 seconds to chime 5 times, there are only 4 intervals between the first and the last chime. Thus, each interval = \(5/4 = 1.25\) seconds. Step 2: For 10 Cuckoos.
10 Cuckoos have \(9\) intervals. Time = \(9 \times 1.25 = 11.25\) seconds. \[ \boxed{11.25 \ \text{seconds}} \]