# Clocks and Calendars Quiz Set 01

### Question 1

Sham remembers that birthday of Rohit is after Jan 19 but before Jan 24, but Venkat remembers that it is between 17 and 21 Jan. If it was Tuesday on Jan 17, what is the day of the week on the correct date, if both of them remember well?

A

Friday.

B

Saturday.

C

Thursday.

D

Sunday.

Soln.
Ans: a

Probable dates according to Sham are 20; 21; 22; 23; Probable dates according to Venkat are 18; 19; 20; The common date is: 20, and the day will be Friday

### Question 2

An event occurs at regular intervals of 30 minutes. The last event occured 3 minutes ago The next event is due at 09::30 AM. What is the time now?

A

09::03 AM.

B

09::05 AM.

C

09::02 AM.

D

09::00 AM.

Soln.
Ans: a

The last event took place at 09::30 AM - 30 minutes, i.e., at 09::00 AM, which was 3 minutes earlier from now. So the time now is 09::00 AM + 3 mins = 09::03 AM.

### Question 3

Manju correctly remembers that his father's birthday is not after eighteenth of April. His sister correctly remembers that their father's birthday is before twentieth but after seventeenth of April. On which day in April was definitely their father's birthday?

A

Seventeenth.

B

Nineteenth.

C

Eighteenth.

D

Seventeenth or Eighteenth.

Soln.
Ans: c

According to Manju birthday = 16, 17, 18. According to Manju's sister birthday = 18, 19. Common day 18th April.

### Question 4

Gurpreet correctly remembers that his mother's birthday is before 23rd of April but after 19th of April, whereas his sister correctly remembers that their mother's birthday is not on or after 22nd of April. On which day in April is definitely their mother's birthday?

A

Twentieth.

B

Twenty-first.

C

Twentieth or twenty-first.

D

Twenty second.

Soln.
Ans: c

According to Gurpreet = 20, 21, 22. According to his sister = not after 21st April. So, the birthday will be 20 or 21 April from both statements.

### Question 5

Two watches, one of which gained at the rate of 1 min. and other lost at the rate of 1 min. daily, were set correctly at noon on the 1st January 1977. When did the watches indicate the same time?

A

Dec. 27, 1977 midnight

B

Dec. 26, 1977 noon

C

Dec. 25, 1977 noon

D

Dec, 27, 1977 noon

Soln.
Ans: d

The first watch gains on the second watch 1 + 1, 2 minutes in a day.
The watches will indicate the same time when the one has gained 12 hours on the other. As 2 minutes is gained in 1 day
∴ 12 hours is gained in days = 12 x 12 x 60 = 360 days
Counting 360 days from 1st Jan. 1977, we get Dec. 27, 1977.