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- Question
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?
Options- A. 7pm on wednesday
- B. 20 min past 7pm on wednesday
- C. 15min past 7pm on wednesday
- D. 8pm on wednesday
- Correct Answer
- 20 min past 7pm on wednesday
ExplanationThis sunday morning at 8:00 AM, the watch is 5 min. Slow, and the next sunday at 8:00PM it becomes 5 min 48 sec fast. The watch gains min in a time of (7×24)+12 = 180 hours.
To show the correct time, it has to gain 5 min.
5min ->
So the correct time will be shown on wednesday at 7:20 PM
- 1. At what time between 4 and 5 o'clock will the hands of a watch point in opposite directions?
Options- A. 54 past 4
- B. (53 + 7/11) past 4
- C. (54 + 8/11) past 4
- D. (54 + 6/11) past 4 Discuss
- 2. 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?
Options- A. 48 min. past 12.
- B. 46 min. past 12.
- C. 45 min. past 12.
- D. 47 min. past 12. Discuss
- 3. If the price of 23 toys is 276, then what will the price of 12 toys ?
Options- A. 144
- B. 148
- C. 156
- D. 186 Discuss
- 4. Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Options- A. 648
- B. 1800
- C. 2700
- D. 10800 Discuss
- 5. An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?
Options- A. 194 seconds
- B. 195 seconds
- C. 196 seconds
- D. 197seconds Discuss
- 6. 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?
Options- A. 11pm
- B. 12pm
- C. 1pm
- D. 2pm Discuss
- 7. An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
Options- A. 360
- B. 180
- C. 90
- D. 60 Discuss
- 8. At what time between 5 and 6 o' clock are the hands of a 3 minutes apart ?
Options- A. 24min
- B. 12min
- C. 13min
- D. 14min Discuss
- 9. At what time between 2 and 3 o'clock will the hands of a clock be together?
Options- A. (9 + 10/11) min past 2
- B. (10 + 10/11) min past 2
- C. (11 + 10/11) min past 2
- D. (12 + 10/11) min past 2 Discuss
- 10. Find the angle between the hour hand and the minute hand of a clock when the time is 3.25
Options- A. 47.5 degrees
- B. 57.5 degrees
- C. 45.5 degrees
- D. 55.5 degrees Discuss
Search Results
Correct Answer: (54 + 6/11) past 4
Explanation:
4 o'clock, the hands of the watch are 20 min. spaces apart.
To be in opposite directions, they must be 30 min. spaces apart.
Minute hand will have to gain 50 min. spaces.
55 min. spaces are gained in 60 min
50 min. spaces are gained in min. or
Required time = min. past 4.
Correct Answer: 48 min. past 12.
Explanation:
Time from 8 a.m. on a day to 1 p.m. on the following day = 29 hours.
24 hours 10 min. of this clock = 24 hours of the correct clock.
hrs of this clock = 24 hours of the correct clock.
29 hours of this clock = hrs of the correct clock
= 28 hrs 48 min of the correct clock.
Therefore, the correct time is 28 hrs 48 min. after 8 a.m.
This is 48 min. past 12.
Correct Answer: 144
Explanation:
Less toys, Less Price (Direct Proportion)
So, let the price be Rs. x
then,
23:12::276:x => x=(276*12)/23
=> x=144
So price of 12 toys will be Rs. 144
Correct Answer: 1800
Explanation:
Let the required number of bottles be x.
More machines, More bottles (Direct Proportion)
More minutes, More bottles (Direct Proportion)
=> 6 * 1 * x = 10 * 4 * 270
=> x= 1800
Correct Answer: 195 seconds
Explanation:
Let the time required by x seconds.
Then, More cloth means More time (Direct Proportion)
So, 0.128 : 1 :: 25 : x
=> x = 195.31
So time will be approx 195 seconds
Correct Answer: 11pm
Explanation:
Time from 5 am. on a day to 10 pm. on 4th day = 89 hours.
Now 23 hrs 44 min. of this clock = 24 hours of correct clock.
356/15 hrs of this clock = 24 hours of correct clock
89 hrs of this clock = (24 x 31556 x 89) hrs of correct clock.
= 90 hrs of correct clock.
So, the correct time is 11 p.m.
Correct Answer: 180
Explanation:
Angle traced by the hour hand in 6 hours=(360/12)*6
Correct Answer: 24min
Explanation:
In this type of problems the formuae is
(5*x+ or - t)*12/11
Here x is replaced by the first interval of given time. Here x is 5.
t is spaces apart
Case 1 : (5*x + t) * 12/11
(5*5 + 3) * 12/11
28 * 12/11 = 336/11= min
therefore the hands will be 3 min apart at 31 5/11 min past 5.
Case 2 : (5*x - t) * 12/11
(5*5 -3 ) * 12/11
22 *12/11 = 24 min
therefore the hands will be 3 min apart at 24 min past 5
Correct Answer: (10 + 10/11) min past 2
Correct Answer: 47.5 degrees
Explanation:
At 3 O'clock, Minute hand is at 12 while the Hour hand is at 3. Again the minute hand has to sweep through ( 30 x 5 ) ie 150° for reaching the figure 5 to show 25 mins.
Simultaneously the Hour hand will also rotate for 25 mins. Thus starting from the mark, 3 the hour hand will cover an angle = (25 x 30) / 60 = 12.5°
Hence, Angle between Hour and the Minute hand = ( 60 - 12.5 ) = 47.5°
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