41 .
At what time between 5 and 6 'o clock, will the hands of a clock be at right angle?
A.101011 minutes past 5 and 43711 minutes past 5
B. 101011 minutes past 5 and 42711 minutes past 5
C. 10911 minutes past 5 and 42711 minutes past 5
D.10911 minutes past 5 and 42711 minutes past 5
42 .
The hands of two clocks coincide every 60 minutes and 72 minutes respectively. What is the approximate time difference between the two clocks (round to closest minute) after 24 hours as measured by a correct clock?
A.260 minutes
B. 262 minutes
C. 264 minutes
D.266 minutes
43 .
A, B, C, D are standing in clockwise direction at the corners of a square of side 's'. They are start running clockwise along the sides of the square with speeds in the ratio 1:2:3:4 respectively. How much distance does A run by the time they all meet for the third time?
A.11 s
B. 12 s
C. 13 s
D.14 s
44 .
At what time between 2 o’clock and 3 o’clock will the two hands of the clock be at an angle of 60 degrees?
A.22 minutes 14 seconds
B. 19 minutes 33 seconds
C. 21 minutes 49 seconds
D.23 minutes 15 seconds