Question

If a clock strikes $12$ in $33$ seconds then it will strike $6$ in how many seconds.

Answer 1

Compute the required time.

There are $11$ intervals of equal time to strike $12$.

Time taken by each interval$=\frac{33}{11}\Rightarrow 3sec$.

For $6$, there are $5$ intervals.

Time taken to strike $6=5\times 3\Rightarrow 15sec$.

Hence, the clock will strike $6$ in $15sec$.