Pay close attention to where the hour and minute hands are pointing. If you have an analog clock handy, you could figure out the answer by playing around with it. But if you just think about how the hands move as the time changes, you should be able to figure it out.
UK Version
Pay attention to where the hour and minute hands are pointing.
If you have an analogue clock to hand, try moving the hands around and you'll soon find the answer.
US Version
Have you noticed exactly where the hour and minute hands are pointing? What time is it on an analog clock when the hour and minute hands are in a straight line?
UK Version
Have you noticed that both the hour and minute hands are pointing exactly at gradations of the clock? They're in a straight line, too.
What time does that indicate?
US Version
The hour and minute hands are each pointing straight at one of the hour marks around the clock, so the time must be right on an hour.
The hour and minute hands are also in a straight line, so what time must it be?
UK Version
With the hour and minute hands pointing straight at the clock's gradations, the time must be ??:00, right on the hour.
Considering that both hands are in a straight line, what time must it be?
US Version
Even if you don't own an analog clock, you can get the answer right away if you visualize the clock hands moving around as the hours go by.
First, picture the hour and minute hands pointing straight up and overlapping at 12:00. Now, as the hands move hour by hour, when is the one time when they end up pointing in a straight line?
UK Version
Even without an actual analogue clock, you can get the answer just by visualising one. First, imagine the hour and minute hands minute hands pointing the same way at 12:00. Now, if you move the hands round, hour by hour...
There is a time when the hour and minute hands are pointing in a straight line.
Solution
Incorrect
US Version
Too bad!
Visualize an analog clock, and try again.
UK Version
Too bad.
Try visualising an analogue clock.
Correct
US Version
Handy!
Once you notice exactly where the hour hand is pointing, the rest is pretty easy.
UK Version
That's right!
It's easy once you notice that the hour hand is pointing straight at one of the clock's gradations.