If a clock takes 22 seconds to strike 12 times (uniform intervals), how long will it take to strike 6 times?
Aptitude
Calendar
Difficulty: Easy
Choose an option
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A10 seconds
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B12 seconds
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C14 seconds
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DNone of these
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E9 seconds
Answer
Correct Answer: 10 seconds
Explanation
Introduction / Context:For striking clocks, the count of intervals equals (strikes − 1). Time scales with intervals if the interval length is constant.
Given Data / Assumptions:
- 12 strikes → 11 intervals → 22 s total.
Concept / Approach:Interval = 22/11 = 2 s. For 6 strikes → 5 intervals.
Step-by-Step Solution:Time = 5 * 2 = 10 seconds.
Verification / Alternative check:Proportional reasoning is straightforward.
Why Other Options Are Wrong:12 s and 14 s assume wrong interval counts; 9 s ignores uniformity.
Common Pitfalls:Using 6 instead of 5 intervals for 6 strikes.
Final Answer:10 seconds