21 .
How much does a watch lose per day, if its hands coincide every 64 minutes?
A.32810 minute
B. 32811 minute
C. 32812 minute
D.33211 minute
View AnswerAns: 32811 minute
22 .
At what time between 9 and 10 o' clock will the hands of a clock be together?
A.4529 min past 9
B. 49111 min past 9
C. 48112 min past 9
D.47215 min past 9
View AnswerAns: 49111 min past 9
23 .
At what time between 4 and 5 o'clock will the hands of a watch point in opposite directions?
A.53611 minutes past 4
B. 53711 minutes past 4
C. 54611 minutes past 4
D.54711 minutes past 4
View AnswerAns: 54611 minutes past 4
24 .
A watch which gains 5 seconds in 3 minutes was set right at 7 am. In the afternoon of the same day, when the watch indicated quarter past 4 o'clock, the true time is
A.3 pm
B. 4 pm
C. 3:30 pm
D.4:30 pm
View AnswerAns: 4 pm
25 .
A and B are running in opposite directions around a circular track of length 120 meters. If the speeds of A and B are in the ratio 3:2, find the minimum distance between their first and 13th meeting points.
A.12 m
B. 24 m
C. 36 m
D.48 m
View AnswerAns: 24 m