type 4 time gained or lost by clock Practice Questions Answers Test with Solutions & More Shortcuts
clocks PRACTICE TEST [5 - EXERCISES]
type 1 angle between the hands of clock
type 2 position of hands of the clock
type 3 faulty clock
type 4 time gained or lost by clock
type 5 comparing clocks
Question : 6
A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?
a) 2 p.m. on Tuesday
b) 1 p.m. on Friday
c) 3 p.m. on Thursday
d) 2 p.m. on Wednesday
Answer »Answer: (d)
Time from 12 p.m. on Monday to 2 p.m.
on the following Monday = 7 days 2 hours = 170 hours.
Therefore, the watch gains $(2 + 4 4/5) min. or 34/5 min.$ in 170 hrs.
now, 34/5 min. are gained in 170 hrs.
2 min. are gained in $(170 × 5/34 × 2) hrs = 50 hrs.$
Therefore, Watch is correct 2 days 2 hrs. after 12 p.m. on Monday
i.e. it will be correct at 2 p.m. on Wednesday
Question : 7 [M.B.A. 2003]
Between 5 and 6, a lady looked at her watch and mistaking the hour hand for the minute hand, she thought that the time was 57 minutes earlier than the correct time. The correct time was
a) 24 minutes past 5
b) 12 minutes past 5
c) 36 minutes past 5
d) 48 minutes past 5
Answer »Answer: (a)
Since the time read by the lady was 57 minutes earlier than the correct time,
so the minute hand is (60 - 57) = 3 minute spaces behind the hour hand.
Now, at 5 O' clock, the minute hand is 25 minute spaces behind the hour hand.
To be 3 minute spaces behind, it must gain (25 - 3) = 22 minute spaces.
55 min spaces are gained in 60 min.
22 min spaces are gained in $(60/55 × 22) = 24 min$
Hence, the correct time was 24 minutes past 5.
Question : 8
A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, When the watch indicated quarter past 4 O' clock, the true time is
a) 59 $7/12$ min. past 3
b) 2 $3/11$ min. past 4
c) 58 $7/11$ min. past 3
d) 4 p.m.
Answer »Answer: (d)
Time from 7 a.m. to 4.15 p.m. = 9 hrs 15 min = $37/4$ hrs 3 min 5 sec of this clock = 3 min. of the correct clock.
= $37/720$ hrs of this clock = $1/20$ hrs of the correct clock
= $37/4$ hrs of this clock
= $(1/20 × 720/37 × 37/4)$ hrs of the correct clock
= 9 hrs of the correct clock
Therefore, The correct time is 9 hrs after 7 a.m., i.e. 4 p.m.
Question : 9
The minute hand of a clock overtakes the hour hand at intervals of 50 min of the correct time. How much does a clock gain or lose in a day?
a) 443 $28/55$ min (gain)
b) 433 $28/55$ min (loss)
c) 445 $5/55$ min (gain)
d) 444 $28/55$ min (loss)
Answer »Answer: (c)
Required result = $(720/11 - x) (60 × 24 /x) min$
Here, x = 50 Therefore, required result = $(720/11 - 50) (60 × 24/50) min$
= $(170/11 × 144/5) min$
= 445 $5/55$ min gain (gain as sign is positive)
Question : 10
The minute hand of a clock overtakes the hour hand at intervals of 88 min of the correct time. How much does a clock gain or lose in a day?
a) 368 $112/121$ min (loss)
b) 369 $112/121$ min (loss)
c) 368 $112/121$ min (gain)
d) 369 $112/121$ min (gain)
Answer »Answer: (a)
Required result = $(720/11 - x) (60×24 /x) min$
Here, x = 88
Therefore, required result =$ (720/11 - 88) (60×24 /88) min$
= $-248/11 × 180/11 min = -368 112/121 min$ (loss as sign in negative)
IMPORTANT verbal reasoning EXERCISES
type 4 time gained or lost by clock Shortcuts »
Click to Read...type 4 time gained or lost by clock Online Quiz
Click to Start..clocks Shortcuts and Techniques with Examples
verbal reasoning CATEGORIES
-
» Verbal Reasoning
-
» Blood Relations
-
» Clocks
-
» Coding & Decoding
-
» Classification
-
» Puzzles Test
-
» Direction & Distance sense test
-
» Series Completion
-
» Venn Diagrams
-
» Assertion & Reason
-
» Cause and Effect
-
» Statement & Conclusion
-
» Statement & Arguments
-
» statement & Assumptions
-
» Statement & Course Of Action
-
» Passage & Conclusion
-
» Seating Arrangements
-
» Sequential Test
-
» Calendar
-
» Mathematical Operations
-
» Word formation
RECENT BLOGS
Recently Added Subject & Categories For All Competitive Exams
New 100+ Compound Interest MCQ with Answers PDF for IBPS
Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Mixture and Alligation MCQ Questions PDF for IBPS
Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams
Continue Reading »
IBPS Profit and Loss Questions Solved Problems with PDF
Most important Profit and Loss multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Aptitude MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Average Aptitude Questions Answers solutions MCQ PDF
New Average multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Quantitative Aptitude MCQ Practice Exercises all competitive exams
Continue Reading »