Clocks and Calendars Quiz Set 38 | Reasoning Exam Questions on 'Clocks and Calendars' Set 38 | Exam questions for Clerical, SSC, SBI Bank PO, NDA Exam, PSU Exams, GATE, National Talent Search Exam and STSE

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Question 1

Phone calls arrive at regular intervals of 35 minutes. The last phone rang 18 minutes ago The next event is due at 10::35 AM. What is the time now?

10::18 AM.

10::20 AM.

10::16 AM.

10::15 AM.

Soln.
Ans: a

The last event took place at 10::35 AM - 35 minutes, i.e., at 10::00 AM, which was 18 minutes earlier from now. So the time now is 10::00 AM + 18 mins = 10::18 AM.

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Question 2

I found that I was one and a half hour earlier than the scheduled time of the train which was 6::20 hours. I had reached the station at.

4-40 hours.

5-10 hours.

4-50 hours.

5-20 hours.

Soln.
Ans: c

The scheduled time of train was.

6:20 - 1:30 = 4.50.

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Question 3

Three comets appear in the sky at regular periods of 9, 18 and 27 years respectively. If a comet has passed just now, what is the minimum time that we must wait for a comet to appear in the sky?

9 years.

28 years.

27 years.

18 years.

Soln.
Ans: a

The least of the given time periods is 9. So this is the minimum waiting time.

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Question 4

An event occurs at regular intervals of 40 minutes. The last event occured 17 minutes ago The next event is due at 02::20 PM. What is the time now?

01::57 PM.

01::59 PM.

01::56 PM.

01::53 PM.

Soln.
Ans: a

The last event took place at 02::20 PM - 40 minutes, i.e., at 01::40 PM, which was 17 minutes earlier from now. So the time now is 01::40 PM + 17 mins = 01::57 PM.

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Question 5

How many hours are there between 2::07 A.M. to 7::42 P.M.

17::35.

18::34.

16::33.

19::36.

Soln.
Ans: a

Minutes from 2::07 A.M. to 3::00 A.M. are 60 - 7 = 53. Minutes from 3::00 A.M. to 12::00 noon are 60 X 9 = 540 mins. Minutes from 12::00 noon to 7::42 P.M. are 60 x 7 = 420 + 42 = 462 mins. So total minutes are 53 + 540 + 462 = 1055 minutes, which are equal to 60 X 17 + 35 Thus, hours are = 17, and minutes = 35

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