At what time between 4 and 5 `o^(prime)c loc k` will the hands of a watch point in opposite directions? (a) 45 min. past 4 (b) 40 min. past 4 (c) `50 4/(11)\ m indotp a s t\ 4` (d) `54 6/(11)\ m indotp a s t\ 4`

At what time between 4 and 5 O'clock will the hands of a watch point it opposite directions?

At what time between 9 and 10 o^(prime)c loc k will the hands of a watch be together? (a) 45 min. past 9 (b) 50 min. past 9 (c) 49 1/(11) m indotp a s t 9 (d) 48 2/(11) m indotp a s t 9

At what time between 7 and 8 o' clock will the hands of a clock be in the same straight line but,not together? (a) 5 min.past 7 (b) 5(2)/(11)backslash m in past 7 (c) 5(3)/(11)backslash m in past Y (d) 5(5)/(11)backslash m in past 7

At what time between 5.30 and 6 will the hands of a clock be at right angles? 43 5/(11) m indotp a s t 5 (b) 43 7/(11) m indotp a s t 5 (c) 40 min. past 5 (d) 45 min. past 5

A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o^(prime)c loc k , the true time is 59 7/(12) m indotp a s t 3 (b) 4 p.m. 58 7/(11)m indotp a s t 3 (d) 2 3/(11) m indotp a s t 4

At what time, in minutes, between 3 o^(prime)c loc k and 4 o^(prime)c loc k , both the needles will coincide each other? 5 1/(11)^"p a s t (b) 12 4/(11)^" p a s t (c) 13 4/(11)^" p a s t (d) 16 4/(11)^" p a s t

What will be the reflection of the point (4, 5) in the second quadrant? (a) (- 4, -5) (b)(-4,5) (c)(4,-5) (d)None of these

The mean of first five prime numbers is (a) 5.6 (b) 5.5 (c) 5.4 (d) 5.2

If the distance s travelled by a particle in time t is s=a sin t +b cos 2t , then the acceleration at t=0 is: a) a b) -a c) 4a d) -4b