View Full Version : Quick mental arithmetic test

gravity victim
2nd Sep 2005, 17:36
Try this: (and put that calculator away!)

Begin with 1000

Now add 40

Add another 1000

Add 30

Add another 1000

Add 20

Add another 1000

Now add 10

Make it 5000?

If so, you're miles out, and so was I when I tried it!

Onan the Clumsy
2nd Sep 2005, 17:40
That's probably because you're thick.


tall and tasty
2nd Sep 2005, 17:45
no it makes


40 + 30 + 20 + 10 = 100

1000 x 4 = 4000

4000+100 = 4100

without a calculator, never trust them only as good as the person who inputs the data!

TnT :ok:

I may be way out though it is friday afternoon

gravity victim
2nd Sep 2005, 17:47
Alas probably true, Onan, but i'm in good company. So far three out of four people have got it wrong...but then again, Broadmoor might not be a representative environment..:p

2nd Sep 2005, 21:10

But I see the temptation.

3rd Sep 2005, 07:07
Amazing. I was too stupid as well. And so far I took pride in my mental arithmetics.

Farmer 1
3rd Sep 2005, 18:20
OK, here's another

You drive your bus out of the depot on a standard run.

At stop A, 17 passengers embark.

At stop B, 8 disembark and a further 17 embark.

At stop C, 8 disembark and a further 17 embark (some of the 8 are from stop B).

At stop D, 17 disembark and 8 embark.

At stop E, 17 disembark and 8 embark.

And the question is:- What is the name of the bus driver? (No thinking time allowed.)

3rd Sep 2005, 18:26
The bus driver is called Balix, at least when I work it out...

Farmer 1
3rd Sep 2005, 18:32
Actually, that's just what I thought, but my mate Fred insists that's a load of you know what, Balix.

shut that door
3rd Sep 2005, 22:47
Try this one in 10secs............. What's half of 99?

Be honest give it a go.

Also...how to win at darts. This can be 301 or 501 (double to start and double it for the other player) every score the other player makes he/she has to double it (you can say to give them a chance) Start on a double and double it. All scores from your pal have then to be doubled throughout game.

The best bit is when they try to finish, you win every time.