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A wall-clock takes 9 seconds in tinging at 9 o'clock. The time, it will take in tinging at 11 o'clock, is = ?
Answer & Solution
Correct Answer:
Option
D
There are 8 intervals in 9 tinging 10 intervals in 11 tinging.
Time duration of 8 intervals = 9 seconds
∴ Required time = Duration of 10 intervals
$$\eqalign{ & = \left( {\frac{9}{8} \times 10} \right){\text{ seconds}} \cr & = 11.25{\text{ seconds}} \cr} $$
Time duration of 8 intervals = 9 seconds
∴ Required time = Duration of 10 intervals
$$\eqalign{ & = \left( {\frac{9}{8} \times 10} \right){\text{ seconds}} \cr & = 11.25{\text{ seconds}} \cr} $$
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