# Clocks and Calendars Quiz Set 04

### Question 1

Rajiv is 84 weeks and 14 days older than me, whereas Sara is 90 weeks and 12 days older than Rajiv. If Sara was born on a Saturday, on which day of the week was I born?

A

Thursday.

B

Saturday.

C

Friday.

D

Monday.

Soln.
Ans: a

Sara is 84 + 90 = 174 weeks and 14 + 12 = 26 days older than me. Weeks are in multiples of 7 days. So we can ignore them. We can deal with the 26 days alone. Since 26 = 3 X 7 + 5, the excess days are 5. So we can count the day to Saturday + 5 = Thursday.

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### Question 2

Sunita remembers that anniversary of Sham is after Aug 20 but before Aug 27, but Radhika remembers that it is between 5 and 22 Aug. If it was Sunday on Aug 5, what is the day of the week on the correct date, if both of them remember well?

A

Tuesday.

B

Wednesday.

C

Monday.

D

Thursday.

Soln.
Ans: a

Probable dates according to Sunita are 21; 22; 23; 24; 25; 26; Probable dates according to Radhika are 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; The common date is: 21, and the day will be Tuesday

### Question 3

Manpreet correctly remembers that her father's birthday is after eighteenth May but before twenty second May. Her brother correctly remembers that their father's birthday is before twenty fourth May but after twentieth May. On which date in May was definitely their father's birthday?

A

twentieth.

B

Nineteenth.

C

Eighteenth.

D

Twenty first.

Soln.
Ans: d

According to Manpreet her father's birthday = 19, 20, 21.

According to Manpreet's brother birthday is = 21, 22, 23.

Common day 21 May.

### Question 4

Three comets appear in the sky at regular periods of 7, 14 and 21 years respectively. If a comet has passed just now, what is the minimum time that we must wait for a comet to appear in the sky?

A

7 years.

B

22 years.

C

21 years.

D

14 years.

Soln.
Ans: a

The least of the given time periods is 7. So this is the minimum waiting time.

### Question 5

If 13th January of an ordinary, non-leap year falls on a Tuesday, then what will be the day of week on 1st March of that year?

A

Sunday.

B

Tuesday.

C

Thursday.

D

Wednesday.

Soln.
Ans: a

Count the days from months between January 13 and March 1 like this: January days = 31;February days = 28;Add 1 days of March. Subtract 13 days of January. So total days = 47. Since 47 = 6 X 7 + 5, so excess days are 5. So we can count the day to Tuesday + 5 = Sunday.

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