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- Question
A watch which gains uniformly is 2 minutes low at noon on Tuesday and is 4 min 48 sec fast at 2 p.m. on the following Tuesday. When was it correct ?
Options- A. 12 p.m. on Wednesday
- B. 2 p.m. on Thursday
- C. 3 p.m. on Thursday
- D. 2 p.m. on Wednesday
- Correct Answer
- 2 p.m. on Thursday
ExplanationTime from 12 p.m. on Tuesday to 2 p.m. on the following Tuesday = 7 days 2 hours.
= 170 hours.
The watch gains = (2 + 4 x 4/5) min
= 34/5 min. in 170 hrs.
Now, 34/5 min are gained in 170 hrs.
Then, 2 min are gained in (170 x 5/34 x 2) hrs.
Watch is correct after 2 days 2 hrs after 12 p.m. on Tuesday, i.e., it will be correct at 2 p.m. on Thursday. - 1. How many times in a day, are the hands of a clock in straight line but opposite in direction?
Options- A. 11
- B. 22
- C. 33
- D. 44 Discuss
- 2. A clock is started at noon. By 10 minutes past 5, the hour hand has turned through
Options- A. 145
- B. 155
- C. 165
- D. 175 Discuss
- 3. At what time between 4 o'clock and 5 o'clock will the two hands of the clock be at the right angle to each other for the first time?
Options- A. 58/11 min past 4 o'clock
- B. 422/11 min past 4 o'clock
- C. 60/11 min past 4 o'clock
- D. 420/11 min past 4 o'clock Discuss
- 4. A clock gains 15 minutes per day. If it is set right at 12 noon, the time it shows at 4 AM is
Options- A. 4.20 AM
- B. 4.30 AM
- C. 4.02 AM
- D. 4.10 AM Discuss
- 5. At 3.40, the hour hand and the minute hand of a clock form an angle of:
Options- A. 110
- B. 120
- C. 130
- D. 140 Discuss
- 6. What time does the mirror image of an analog clock at 5'O clock show?
Options- A. 12 :00
- B. 5 :00
- C. 7 :00
- D. 6 :00 Discuss
- 7. Kanchan bought a clock with 25% discount on marked price. She sold it with 75% gain on the price she bought. What was her profit percentage on the marked price?
Options- A. 31.25
- B. 50
- C. 56.25
- D. 60 Discuss
- 8. Two people A and B are at a distance of 260 km from each other at 9:00 a.m. A immediately starts moving towards B at a speed of 25 km/h and at 11:00 a.m. B starts moving towards A at a speed of 10 km/hr. At what time (in p.m.) will they meet each other?
Options- A. 5:00
- B. 6:00
- C. 6:30
- D. 7:00 Discuss
- 9. When the two hands are at right angles, they are ---------- minute spaces apart,
Options- A. 13
- B. 14
- C. 15
- D. 16 Discuss
- 10. The circular measure of the included angle formed by the hour hand and minute hand of a clock at 3 PM will be
Options- A. ?4
- B. ?3
- C. 5?12
- D. ?2 Discuss
Search Results
Correct Answer: 22
Explanation:
The hands of a clock point in opposite directions (in the same straight line) 11 times in every
12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).
So, in a day, the hands point in the opposite directions 22 times
Correct Answer: 155
Explanation:
Angle traced by hour hand in 12 hrs = 360º
Angle traced by hour hand in 5 hrs 10 min. i.e hrs = =
Correct Answer: 60/11 min past 4 o'clock
Correct Answer: 4.10 AM
Correct Answer: 130
Correct Answer: 7 :00
Correct Answer: 31.25
Correct Answer: 5:00
Correct Answer: 15
Explanation:
Correct Answer: ?2
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