A wall-clock takes 9 seconds in tinging at 9 o'clock. The time, it will take in tinging at 11 o'clock, is = ?
A. 10 seconds
B. 1.80 seconds
C. 11 seconds
D. 11.25 seconds
Answer: Option D
Solution(By Examveda Team)
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
$$\eqalign{ & = \left( {\frac{9}{8} \times 10} \right){\text{ seconds}} \cr & = 11.25{\text{ seconds}} \cr} $$
This Question Belongs to Arithmetic Ability >> Clock
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