A. ½

B. 1

C. 1 ½

D. 2

325-(12)² + 75= (?)²-68

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 ½ hours. If the speed of the stream be 3 kmph. What is the speed of the boat in still water?

At what approximate time between 4 and 5 am will the hands o f a clock be at right angle?

A man’s speed with the current is 15 km/hr and the speed of the current is 2.5kmph, the man’s Speed against the current is

A train moves with a speed of 108 kmph. Its speed in meters per sec