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Pinky was born on 29th, Feb 2016 which happened to be a Monday. If she lives to be till 2099, how many birthdays would she celebrate on a Monday?

A.

1

B.

2

C.

3

D.

5

Answer with explanation

Answer: Option BExplanation

29th Feb, 2016 = Monday => 28th Feb, 2012 = Sunday

28th Feb, 2017 = Tuesday (because 2016 is a leap year, there will be 2 odd days)

Therefore» Feb 28th 2018 (Wednesday), Feb 28th 2019 (Thursday), Feb 28th 2020 (Friday), Feb 29th 2020 (Saturday)

Or, Feb 29th to Feb 29th after 4 years, we have 5 odd days.

So, every subsequent birthday, would come after 5 odd days.

2020 birthday – 5 odd days

2024 birthday – 10 odd days = 3 odd days

2028 birthday – 8 odd days = 1 odd day

2032 birthday – 6 odd days

2036 birthday – 11 odd days = 4 odd days

2040 birthday – 9 odd days = 2 odd days

2044 birthday – 7 odd days = 0 odd days. So, after 28 years, his birthday would fall on Monday.

The next birthday on Monday would be in year 2072 (further 28 years later), the one after that would be in year 2100. But we are told that she lives upto year 2099.

So, there are 2 occurrences of his birthday falling on Monday – 2044 & 2072.

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January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?

A.

Monday

B.

Tuesday

C.

Wednesday

D.

Sunday

Answer with explanation

Answer: Option BExplanation

The year 2007 is an ordinary year. So, it has 1 odd day.

1^{st} day of the year 2007 was Monday.

1^{st} day of the year 2008 will be 1 day beyond Monday.

Hence, it will be Tuesday.

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How many days will there be from 26th January, 1996 to 15th May, 1996(both days included)?

A.

110

B.

111

C.

112

D.

113

Answer with explanation

Answer: Option BExplanation

Number of days = (6 + 29 + 31 + 30 + 15) = 111.

Note : 1988 is a leap year. So, number of days in February = 29.

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What will be the day of the week on 1st Jan 2001?

A.

sunday

B.

friday

C.

monday

D.

tuesday

Answer with explanation

Answer: Option CExplanation

100 years contain 5 odd days.(it includes leap years also)

2000 years contain 20*5=100 odd days

400,800,1200,1600,200 are leap years because these are divisible by 400 so another 5 odd days

whereas 100,200,300,500..etc are not leap years

total of 105 odd days

105/7=0

2000 Dec 31 is Sunday next day is Monday

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On 8^{th} Dec, 2007 Saturday falls. What day of the week was it on 8^{th} Dec, 2006?

A.

Sunday

B.

Monday

C.

Friday

D.

Sunday

Answer with explanation

Answer: Option CExplanation

The year 2006 is an ordinary year. So, it has 1 odd day.

So, the day on 8^{th} Dec, 2007 will be 1 day beyond the day on 8^{th} Dec, 2006.

But, 8^{th} Dec, 2007 is Saturday.

8^{th} Dec, 2006 is Friday.

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The second day of a month is Friday, What will be the last day of the next month which has 31 days?

A.

Friday

B.

Saturday

C.

Wednesday

D.

Data inadequate

Answer with explanation

Answer: Option DExplanation

We cannot find out the answer because the number of days of the current month is not given.

Fridays of the month are on 2nd,9th,16th 23rdand 30th

On 1st of next month will be Saturday

So Saturdays will be on 8th,15th, 23rd 30th

On 31st it will be Sunday

But if the month is July The next month will have a different day on the last day

Further, if the month is February then also we will have a different answer.

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If it was Wednesday on March 1, 2006, which day was it on March 1, 2002?

A.

Tuesday

B.

Friday

C.

Monday

D.

Sunday

Answer with explanation

Answer: Option BExplanation

Total number of odd days between the years 2002 and 2006 =

(2006 – 2002) + 1 = 5 odd days. The year 2004 is a leap year, it has two odd days. So, one extra odd day is added.

So, if it was Wednesday on March 1, 2006, it would be (Wednesday – 5) Friday on March 1, 2002.

(or)

If a particular date is on a specific date in a year, the same date would have been on the day before in the previous year. However, if the first year is a leap year, the difference in the number of years will be two.

So, if March 01, 2008, was a Saturday (leap year)

March 01, 2007 = Thursday

March 01, 2006 = Wednesday

March 01, 2005 = Tuesday

March 01, 2004 = Monday (leap year)

March 01, 2003 = Saturday

March 01, 2002 = Friday

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January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?

A.

Monday

B.

Tuesday

C.

Wednesday

D.

sunday

Answer with explanation

Answer: Option BExplanation

The year 2007 is an ordinary year. So, it has 1 odd day.

1^{st} day of the year 2007 was Monday.

1^{st} day of the year 2008 will be 1 day beyond Monday.

Hence, it will be Tuesday.

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Which of the following year is not a leap year?

A.

1200

B.

2000

C.

700

D.

800

Answer with explanation

Answer: Option CExplanation

Remember the leap year rule (Given in the formulas)

1. Every year divisible by 4 is a leap year if it is not a century.

2. Every 4th century is a leap year, but no other century is a leap year.

800,1200 and 2000 come in the category of the 4th century (such as 400, 800, 1200, 1600, 2000, etc).

Hence 800,1200 and 2000 are leap years.

700 is not the 4th century, but it is a century. Hence it is not a leap year

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Second Saturday and every Sunday is a holiday. How many working days will be there in a month of 30 days beginning on a Saturday?

A.

24

B.

28

C.

32

D.

45

Answer with explanation

Answer: Option AExplanation

Mentioned month begins on a Saturday and has 30 days

Sundays = 2^{nd}, 9^{th}, 16^{th}, 23^{rd}, 30^{th}

=> Total Sundays = 5

Every second Saturday is holiday.

1 second Saturday in every month

Total days in the month = 30

Total working days = 30 – (5 + 1) = 24

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Today it is Thursday.After 132 days,it will be

A.

Monday

B.

Sunday

C.

Wednesday

D.

Thursday

Answer with explanation

Answer: Option CExplanation

Since each day of the week is repeated after 7 days.

After 133 days, it will be Thursday.

So one day before that would be Wednesday.

(or)

1 week = 7 days

So, In order to find 132 days after Thursday, we need to find the number of weeks in 132 days

Now if we divide 132 by 7 : Quotient = 18 and Remainder = 6

Here, Quotient shows a number of weeks and the remainder is the number of days. So, If today is Thursday we need to find the day after 18 weeks and 6 days :

So, after 18 weeks it will be Thursday itself and after 6 days of Thursday, It will be Wednesday.

So, Wednesday is the day that comes after 132 days if it is Thursday today.

Hence, Wednesday is the right answer.

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What was the day of the week on June 17, 1991?

A.

Tuesday

B.

Wednesday

C.

Friday

D.

Monday

Answer with explanation

Answer: Option DExplanation

June 17, 1991 = (1990 years + period from 01.01.1991 to 17.06.91)

⇒Odd days in 1600 years = 0

⇒Odd days in the next 300 years = 15 odd days (2 week + 1 odd day) = 1 odd day

90 years have 22 leap years + 68 ordinary years.

⇒Number of odd days in 90 years = 22*2 + 68*1 = 112 odd days (16 weeks + 0 odd day) = 0 odd day

Number of odd days from 01.01.91 to 17.06.91= Jan. (31) + Feb. (28) + March (31) + April (30) + May (31) + June (17) = 168 days

⇒168 days = 24 weeks + 0 odd days

Total number of odd days = 0 + 1 + 0+ 0 = 1 odd day

1 odd day represents Monday, so the given day was Monday.

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