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In a plane mirror, image is formed behind the mirror at the same distance as the object is in front of it. Therefore, if the distance between an object and its image is 2m then object must be 1m ahead of the mirror. The girl should therefore walk 5 – 1 = 4 towards the mirror.
A clock gets fast by 15 minutes every day. If, on a certain day, the clock shows correct time at 12 in the noon, what time will the clock show at 4:00 ...
At 2'0 clock, the hands of a clock make an acute angle and a reflex angle. How much is the reflex angle (in degrees)?
Find the cube of 373.
Length of a minute hand of a clock is 14 cms. Area swept bv the minute hand in 5 minutes is:
