Question

What is `6:43` rounded to the nearest hour or quarter of an hour?

Answer 1

See a solution process below:

Explanation:

The hours/quarter/half hours are:

• 6:00
• 6:15
• 6:30
• 6:45

6:43 is between 6:30 and 6:45

6:43 is 13 minutes away from 6:30

6:43 is 2 minutes away from 6:45

Therefore we can round 6:43 to 6:45, the nearest quarter hour.

Answer 2

`6:45`

Explanation:

It is sufficient to round to the nearest quarter of an hour, because an hour represents four-quarters anyway.

You are asked to round `6:43` to:

`6:00, or 6:15, or 6.30, or 6.45, or 7:00` ,

whichever of these is nearest

`6:43` lies between `6:30 and 6:45`

It is `6:43 - 6:30 = 13` minutes minutes past `6:30`

It is `6:45 -6:43 = 2` minutes before `6:45`

Therefore `6:45` is closest