Free Amazon MBA: Clock and Calendar Questions and Answers 1

Question 1

How many times a day are a clock's hands straight?

Accepted Answer

44

Answer

A clock's hands are straight when they are either coincident (0 degrees apart) or exactly opposite (180 degrees apart). In a 12-hour period, the hands coincide 11 times and are opposite 11 times. Therefore, in a full 24-hour day, this occurs 22 times for coincidence and 22 times for opposition, totaling 44 times.

Question 2

Thursday is today. the 91st day. As follows:

Accepted Answer

Thursday

Answer

To determine the day of the week 91 days from Thursday, we need to find the remainder when 91 is divided by 7, as there are 7 days in a week. Since 91 divided by 7 is exactly 13 with a remainder of 0, the 91st day will fall on the same day of the week as today. Therefore, the 91st day will also be a Thursday.

Question 3

At 7 am, a clock is set to display the right time. Monday. The time is off by 15 minutes in 24. When the clock reads 6 am on the next Friday, what hour will it actually be?

Accepted Answer

7 am Friday

Answer

The clock loses 15 minutes every 24 actual hours, meaning it shows 23 hours and 45 minutes (23.75 hours) for every 24 actual hours. From Monday 7 am to Friday 6 am on the faulty clock, 95 hours have passed. Using the ratio (Actual Time / Faulty Time) = (24 / 23.75), we find that 95 faulty hours correspond to 96 actual hours. Adding 96 actual hours to Monday 7 am brings us to Friday 7 am.

Question 4

At six in the morning, a clock is set to start. When it reads 11 o'clock in the morning, by how many degrees will the hour rotate the clock?

Accepted Answer

150°

Answer

The hour hand of a clock completes a full 360-degree rotation in 12 hours. This means it moves 30 degrees every hour (360 degrees / 12 hours). From 6 am to 11 am, a total of 5 hours have passed. Therefore, the hour hand will have rotated 5 hours * 30 degrees/hour = 150 degrees.

Question 5

How many degrees will the hour hand rotate when an accurate clock reads 2 o'clock in the afternoon at 8 o'clock in the morning?

Accepted Answer

180°

Answer

The hour hand moves 30 degrees for every hour that passes (360 degrees / 12 hours). From 8 o'clock in the morning to 2 o'clock in the afternoon, a total of 6 hours have elapsed. Therefore, the hour hand will have rotated 6 hours * 30 degrees/hour = 180 degrees.

Amazon Practice Test

Amazon Practice Test

Free Amazon MBA: Clock and Calendar Questions and Answers 1