On a digital clock, the digit '1' appears the most often in one day. How many times does the digit appear in 6 days?
A) 960
B) 1068
C) 1584
D) 624
E) 336

Question

On a digital clock, the digit '1' appears the most often in one day. How many times does the digit appear in 6 days? ​
A) 960
B) 1068
C) 1584
D) 624
E) 336

Quizplus · Accepted Answer

In a 24-hour period, the digit '1' appears 300 times. This includes every hour from 10 to 19, and additional appearances in minutes and seconds. Over 6 days, this amounts to 6 * 300 = 1800 times. However, this calculation overlooks the fact that each '10' contributes two '1's. Correcting this, we find the digit '1' actually appears 1800 - (6 * 2 * 24) = 1068 times.

On a Digital Clock, the Digit '1' Appears the Most