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Problems on CLOCKS

concept and questions related to clock for placements and bank and ssc and railway exams

Satish45
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Problems on CLOCKS

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  1. Problems On Clock

  2. Structure of a Clock A clock is composed of 360 degrees and divided into 12 equal divisions.

  3. Angle :As it is divided into 12 parts each part(segment) is of 30° Ie 360/12 = 30°

  4. 1. Finding the angle (time is given). Question Types : 2. Finding the time (angle is given). 3. Number of times an angle is formed. 3. Faulty clocks.

  5. Points To Remember :1. In 1 hour the hour hand move 30°.2. In 1 minute the hour hand move 0.5°. 3. In 1 hour the minute hand move 360°.4. In 1 minute the minute hand move 6°.5. In 60 minutes, the minute hand gains 55 minutes.

  6. 1. How many times the hands of a clock coincide in a day?a. 24b. 22c. 23d. 21

  7. 2. What is the angle between hour hand and minute hand of a clock at 3:30?a. 65°b. 70°c. 75°d. 80°

  8. 3. At what time between 3 and 4, the hands of a clock are straight and point in opposite directions?a. 42 1/11 past 3b. 45 1/11 past 3c. 49 1/11 past 3d. 51 1/11 past 3

  9. 5. At what time between 4 o'clock and 5 O' clock will the hands of a clock coincide?a. 19 9/11 mins past 4b. 20 9/11 mins past 4c. 21 9/11 mins past 4d. 22 9/11 mins past 4

  10. 6. How many times the hands of a clock are in right angle in a day?a. 11b. 22c. 44d. 12

  11. 7. The reflex angle between the hands of a clock at 10:25 is:a. 180°b. 195°c. 197 (½) °d. 190 °

  12. 8. A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours will be the true time when the clock indicates 1 p.m. on the following day?A) 48 min. past 12. B) 46 min. past 12.C) 45 min. past 12.D) 47 min. past 12.

  13. 9. A clock is set right at 5 a.m. The clock loses 16 minutes in 24 hours.What will be the true time when the clock indicates 10 p.m. on 4th day?A) 11pm B) 12pmC) 1pm D) 2pm

  14. 10. A watch which gains uniformly ,is 5 min,slow at 8 o'clock in the morning on sunday and it is 5 min 48 sec.fast at 8 p.m on following sunday. when was it correct?A) 7pm on wednesdayB) 20 min past 7pm on wednesdayC) 15min past 7pm on wednesdayD) 8pm on Wednesday

  15. 11. In 16 minutes, the minute hand gains over the hour hand by –A) 16 deg B) 80 degC) 88 deg D) 96 deg

  16. 1. Find the angle between minute hand and hour hand at 6:30 AM2. Find the angle between hour hand and minute hand at 11:50 AM3. Find the angle between minute hand and hour hand at 10:10 AM4. Find the angle between hour hand and minute hand at 7:20 AM5. At what time between 9PM to 10PM minute hand and hour hand will be opposite to each other?6. At what time between 4PM to 5PM minute hand and hour hand will coincide?7. At what time between 2PM and 3PM the angle between minute hand and hour hand is 100o.

  17. 1. If the hour hand have to move 7o. Then the min hand should move ?2. Find the percentage change in angle between minute hand and hour hand from 2PM to 6PM.3. At what time between 8 and 9 o’clock will the hands of a clock be at right angle?4. A watch, which gains uniformly, is 2 min, slow at noon on Sunday, and is 4 min 48 seconds fast at 2 p.m on the following Sunday when was it correct ?5. A clock is set at 10 a.m. The clock loses 16 minutes in 24 hours. What will be the true time when the clock indicates 3 a.m. on 4th day?

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