If a clock strikes six times in 5 seconds, the number of strikes in 10 seconds is (a) 8             (b) 9         (c) 10          (d) 11

If a clock strikes the appropriate number of times at each hour, then the number of times it will strike in a day is

A wall clock strike 12 and it takes 33 seconds to do so. How much time it will take to strike 4?

The potential difference applied to an X-ray tube is 5k V and the current through it is 3.2 mA. Then, the number of electrons striking the target per second is. (a) 2xx10^16 (b) 5xx10^6 (c ) 1xx10^17 (d) 4xx10^15 .

A clock strikes once at 1backslash O' clock,twice at 2backslash O' clock,thrice at 3backslash O' clock and soon. What is the total number of strikings in a day (a) 136( b) 146 (c) 156 (d) 166

What is the angular displacement in radian of the second hand of a clock in 10 seconds ?

A wall clock takes 10 seconds to strike 6. How much time it will take to strike 12.

The wall clock takes 6 seconds to strike 4, how much time it will take to strike 12?

The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle number is: (a) 11 (b) 11.3 (c) 11.4 (d) 11.5

A pendulum strikes 5 xx in 3 seconds and another pendulum strikes 7 xx in 4 seconds.If both pendulum start striking at the same time,how many clear strikes can be listened in 1 minute? (a) 195quad (b) 199 (c) 200 (d) 205