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There are 3 clocks located at California, Berlin and Beijing respectively. If the hour hand of the clock at California is rotated by 270 degrees, then it will show same time as clock in Berlin. If the hour hand of clock in Berlin is rotated by 180 degrees, then it will show same time as clock in Beijing. If time at clock at Beijing is 8 : 30 PM what time is clock at California showing?
A clock was set at right time at 1:00 pm. A man rotates hour hand 90° anti-clock wise every hour till the hour hand comes back at 1 o’ clock. How many times the man rotates the hour hand?
Car A with wheel of diameter 35 cm makes 40000 rotations per hour and car B with diameter 42 cm makes 50000 rotations per hour. Car A is chased by B from an initial separation of ‘x’ meters and overtakes it in 79.2 seconds. How much time would have been taken to overtake if car A has wheels rotating at a rate of 45000 rotations per hour (in seconds)?
Three friends converted the time of 24 hours clock in that of 12 hour clock as follows: Name of the children Time in 24 hour clock Time in 12 hour clock Cheeku 23:45 11:45 pm Bittu  16:30 04:30 am Pinki 19:28 07:28 pm Who has shown incorrect time in 12 hour clock?
Given below are quantities named A,B and C. Based on the given information, you have to determine the relation between the quantities. You should use the given data and your knowledge of mathematics to choose among the possible answer. Quantity A: Tap1 and Tap2 can fill the tank in 16 hours and 25 hours respectively. Both the taps opened together. After some time Tap 1 is closed and after that the tank is filled in 12 hours. In how many hour Tap 1 and 2 work together? Quantity B: Three taps 1, 2, 3 can fill a cistern in 10,14,18 hours respectively. If tap 1 is kept open all the time and tap 2 and 3 is opened alternatively for an hour then find in how many hours the tank will be filled? Quantity C: Two taps 1 and 2 are such that tap 1 fills the tank in 10 hours and tap2 empties it in 20 hours. If tap 1 is opened first and after 5 hours tap 1 is closed and tap 2 is opened, then the tank emptied in x hours and find the value of x?
A minute hand of a clock loses 30° every hour. The clock was set at 11:00 am. The acute angle made by minute hand and hour hand at actual time when the clock shows 4:00 pm.
A clock was set at right time at 12:00 noon. It loses 10 minutes every hour. What is the difference in angle made by minute hand and hour hand at 6:30 pm and angles made by minute hand and hour hand at actual time? Note: Consider acute angle.
A pipe, working at full speed, can fill an empty cistern in 1 hour. However, during the first hour it worked at one-twenty-fourth of its capacity, during the second hour at one-twelfth of its capacity, during the third hour at one-eighth of its usual capacity, during the fourth hours at one-fourth of its usual capacity and during the fifth hour it was only one-half as efficient as it was supposed to be. A second pipe also displayed similar performance, but if it worked at full speed would have filled the empty cistern in 2 hours. Together with a drain pipe that drained water out of the tank a constant rate, the empty cistern could be filled in 5 hours, all the three pipe working concurrently. How many hours will it take the drain pipe to empty the filled cistern if no other pipe was functioning during the time?
In the first 6 hours of a day, a printer can print average of 15 pages/hour, for the next 8 hours it can print 12 pages/hour. For the next 3 hours it can print 17 pages/hour and for the last 7 hours it can print 9 pages/hour, then what is the average speed per hour of the printer for that day?
Three clocks are designed to alarm in every hour, two hours and three hours respectively. If they all alarmed together three hours before, then after how many hours from now will they next alarm together? A. 3 hours B. 6 hours C. 2 hours D. 1 hours