50+ Calendar Problems with Solutions Pdf - 1
Question: 1
A clock takes 9 seconds to strike 4 times. In order to strike 12 times at the same rate, the time taken is
(A) 27 seconds
(B) 29 seconds
(C) 33 seconds
(D) 36 seconds
Ans: C
There are 3 intervals when the clock strikes 4
Time taken in 3 intervals = 9 seconds
∴ Time taken for 1 interval = 3 seconds
In order to strike 12, there are 11 intervals,
for which the time taken is 11 x 3 seconds = 33 seconds.
Question: 2
Number of times 29th day of the month occurs in 400 consecutive year is
(A) 4400
(B) 4497
(C) 4800
(D) 4600
Ans: B
400 consecutive years contain 97 leap years.
∴ In 400 consecutive years February has 29 days 97 times and the remaining 11 months have 29th day 400 x 11 = 4400 times
∴ 29th day of the month occurs 4400 + 97 = 4497 times.
Question: 3
Monday falls on 20th March, 1995. What was the day of 3rd November, 1994?
(A) Sunday
(B) Tuesday
(C) Thursday
(D) Friday
Ans: C
Number of days after 3rd November, 1994 will be
Nov. Dec. Jan. Feb. March
27 + 31 + 31 + 28 + 20 = 137 days ⇒ 19 weeks + 4 days
∴ Number of odd days = 4.
∴ The day on 3rd November, 1994 is (7 – 4) days beyond the day on 20th March, 1995. So, the required day is Thursday.
Question: 4
What was the day of the week on 28th February, 1995?
(A) Monday
(B) Tuesday
(C) Wednesday
(D) Thursday
Ans: B
1600 years contain 0 odd day.
300 years contain 1 odd day.
94 years = (23 leap years + 71 ordinary years)
= (46 + 71) odd days
= 117 odd days, i.e., 5odd days.
Days from 1st January 1995 to 28th February 1995
= (31 + 28) days = 59 days
= ( 8weeks + 3 days) = 3 odd days
Total number of odd days = (0 + 1 + 5 + 3) = 9 odd days
i.e., 2 odd days.
So, the required day is Tuesday.
Question: 5
January 1, 1992 was Wednesday. What day of the week was January 1, 1993?
(A) Monday
(B) Tuesday
(C) Thursday
(D) Friday
Ans: D
1992 was a leap year.
Hence it had 2 odd days.
So, the first day of the year 1993 must be two days after Wednesday.
So, it was Friday.
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