Clock & Calendar
No. of days:
|
0
|
1
|
2
|
3
|
4
|
5
|
6
|
Day:
|
Sun.
|
Mon.
|
Tues.
|
Wed.
|
Thurs.
|
Fri.
|
Sat.
|
CLOCK
1.
|
It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010?
|
Answer: Option C
Explanation:
On 31st December, 2005 it was Saturday.
Number of odd days from the year 2006 to the year 2009 = (1 + 1 + 2 + 1) = 5 days.
Thus, on 1st Jan, 2010 it is Friday.
| |
2.
|
What was the day of the week on 28th May, 2006?
|
Answer: Option D
Explanation:
28 May, 2006 = (2005 years + Period from 1.1.2006 to 28.5.2006)
Odd days in 1600 years = 0
Odd days in 400 years = 0
5 years = (4 ordinary years + 1 leap year) = (4 x 1 + 1 x 2)
Jan. Feb. March April May
(31 + 28 + 31 + 30 + 28 ) = 148 days
Total number of odd days = (0 + 0 + 6 + 1) = 7
Given day is Sunday.
| |
3.
|
What was the day of the week on 17th June, 1998?
|
Answer: Option C
Explanation:
17th June, 1998 = (1997 years + Period from 1.1.1998 to 17.6.1998)
Odd days in 1600 years = 0
Odd days in 300 years = (5 x 3)
97 years has 24 leap years + 73 ordinary years.
Number of odd days in 97 years ( 24 x 2 + 73) = 121 = 2 odd days.
Jan. Feb. March April May June
(31 + 28 + 31 + 30 + 31 + 17) = 168 days
Total number of odd days = (0 + 1 + 2 + 0) = 3.
Given day is Wednesday.
|
4.
|
What will be the day of the week 15th August, 2010?
|
Answer: Option A
Explanation:
15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)
Odd days in 1600 years = 0
Odd days in 400 years = 0
9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 odd days
Jan. Feb. March April May June July Aug.
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days
Total number of odd days = (0 + 0 + 4 + 3) = 7
Given day is Sunday.
|
5.
|
Today is Monday. After 61 days, it will be:
|
Answer: Option B
Explanation:
Each day of the week is repeated after 7 days.
So, after 63 days, it will be Monday.
|
6.
|
If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?
|
Answer: Option A
Explanation:
The year 2004 is a leap year. So, it has 2 odd days.
But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only.
Given that, 6th March, 2005 is Monday.
|
7.
|
On what dates of April, 2001 did Wednesday fall?
| |||||||
Answer: Option D
Explanation:
We shall find the day on 1st April, 2001.
1st April, 2001 = (2000 years + Period from 1.1.2001 to 1.4.2001)
Odd days in 1600 years = 0
Odd days in 400 years = 0
Jan. Feb. March April
(31 + 28 + 31 + 1) = 91 days
Total number of odd days = (0 + 0 + 0) = 0
On 1st April, 2001 it was Sunday.
In April, 2001 Wednesday falls on 4th, 11th, 18th and 25th.
|
8.
|
How many days are there in x weeks x days?
|
Answer: Option B
Explanation:
x weeks x days = (7x + x) days = 8x days.
|
9.
|
The last day of a century cannot be
|
Answer: Option C
Explanation:
100 years contain 5 odd days.
200 years contain (5 x 2)
300 years contain (5 x 3) = 15
400 years contain 0 odd day.
This cycle is repeated.
|
10.
|
On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb, 2004?
|
Answer: Option C
Explanation:
The year 2004 is a leap year. It has 2 odd days.
Hence, this day is Sunday.
| |
11.
|
The calendar for the year 2007 will be the same for the year:
|
Answer: Option D
Explanation:
Count the number of odd days from the year 2007 onwards to get the sum equal to 0 odd day.
Year : 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Odd day : 1 2 1 1 1 2 1 1 1 2 1
Sum = 14 odd days
Calendar for the year 2018 will be the same as for the year 2007.
| |
12.
|
Which of the following is not a leap year?
|
Answer: Option A
Explanation:
The century divisible by 400 is a leap year.
|
13.
|
On 8th Dec, 2007 Saturday falls. What day of the week was it on 8th Dec, 2006?
|
14.
|
January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009?
|
Answer: Option C
Explanation:
The year 2008 is a leap year. So, it has 2 odd days.
1st day of the year 2008 is Tuesday (Given)
So, 1st day of the year 2009 is 2 days beyond Tuesday.
Hence, it will be Thursday.
|
15.
|
January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?
|
Answer: Option B
Explanation:
The year 2007 is an ordinary year. So, it has 1 odd day.
1st day of the year 2007 was Monday.
1st day of the year 2008 will be 1 day beyond Monday.
Hence, it will be Tuesday.
|