find a day without reference day Practice Questions Answers Test with Solutions & More Shortcuts
calendar PRACTICE TEST [4 - EXERCISES]
basic calendar problems
find a day with reference day
find a day without reference day
finding a week on basis of another week
Question : 11
What was the day of the week on 15th August 1947?
a) Saturday
b) Friday
c) Sunday
d) Monday
Answer »Answer: (b)
Odd days in 1600 yrs = 0
Odd days in 300 yrs = 1
46 yrs = (11 leap year + 35 ordinary year)
= (11x2 + 35 x 1) = 1 odd day
∴ Odd days in 1946 yrs = (0+ 1+ 1) = 2
Month | Odd days |
January | 3 |
February |
0 (ordinary year) |
March | 3 |
April | 2 |
May | 3 |
June | 2 |
July | 3 |
August | 1 i.e, (15 ÷ 7) |
Total 17 17 ÷ 7= remainder 3 odd days
Total odd days =2 + 3 = 5
∴ Required day = Friday
Question : 12
What was the day of the week on 28th May 2006?
a) Saturday
b) Thursday
c) Sunday
d) Friday
Answer »Answer: (c)
Odd days in 1600 yrs = 0
Odd days in 400 yrs = 0 5 yrs = (4 ordinary year + 1 leap year)
= (4 x 1+ 1 x 2) = 6 odd days
Month | Odd days |
January | 3 |
February |
0 (ordinary year) |
March | 3 |
April | 2 |
May | 0 i.e,(28 ÷ 7) |
Total | 8 |
Total odd days = 8 + 6 = 14 = 0 odd day
∴ Required day Sunday
Question : 13
On which day of the week does 28th August 2009 fall?
a) Monday
b) Friday
c) Sunday
d) Tuesday
Answer »Answer: (b)
28th August 2009 means,
2008 complete years + First 7 months of the year 2009 + 28 days of August
Number of odd days in 2000 yrs = 0
Number of odd days from 2001 yrs to 2008 yrs
Year | Number of odd days |
2001 | 1 |
2002 | 1 |
2003 | 1 |
2004 | 2 |
2005 | 1 |
2006 | 1 |
2007 | 1 |
2008 | 2 |
2001 2002 2003 2004 2005 2006 2007 2008 1 1 1 2 1 1 1 2
=1+1+1+ 2+ 1+1+1+2 = 10
= 7 x1+ 3 = 3 odd days
Number of odd days in 2009,
Month | Odd days |
January | 3 |
February |
0 (ordinary year) |
March | 3 |
April | 2 |
May | 3 |
June | 2 |
July | 3 |
August | 0 |
January February March April May July August 3 0 3 2 3 2 3 0
= 3 + 0 + 3 + 2 + 3 + 2 + 3 + 0
= 16 = 7 x 2 + 2 = 2 odd days
Total number of odd days till 28th August 2009
= 0 + 3 + 2 = 5
So, the required day is Friday.
Question : 14 [CMAT 2014]
What was the day on 1st January 1901?
a) Monday
b) Wednesday
c) Sunday
d) Tuesday
Answer »Answer: (d)
1st January 1901 means
= (1900 yrs and 1 day)
Now, 1600 yrs have 0 odd days,
300 yrs have 1 odd day and 1 day has 1 odd day.
Total number of odd days = 0 + 1 + 1 = 2 days
∴ the day on 1st January, 1901 was Tuesday.
IMPORTANT verbal reasoning EXERCISES
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