Question

At 6 o'clock the clock ticks 6 times. the time between first and last tick was 30 sec. how much time it takes at 12 o'clock

Answer 1

As at 6 o' clock it ticks 6 times

so at 12 it will tick 12 times.

As ticking of 6 times takes 30 sec

so ticking of 1 time will take 30/6 = 5 seconds

so it will take 12 * 5 seconds at 12 o'clock

i.e., 60 seconds or 1 minutes of time it wil take at 12.

Answer 2

Given :

At 6 o' clock the click ticks 6 times.

The time between first and last tick was 30 seconds.

To find :

How much time it takes at 12 o'clock?

Solution

from the first tick to 6 th tick there will be interval of 5 .

time taken in one tickling 30/5= 6 seconds.

at 12 o'clock ,

for 12 ticklings there will be interval of 11

11 × 6 = 66 seconds

Hence at 12 o'clock time taken will be 66 seconds.