I'm being stupid, aren't I? Please explain this one!

[Manana]

4 (12) 36 2 (6) 18


5 ( ) 45

I just can't see it!!

[doodles]

Ok time to make myself look a fool

4 x 3 = (12) x 3 = 36
2 x 3 = (6) x 3 = 18

so...

5 (9) 45

Just for starter as I'm sure it's wrong but I don't mind giving people a laugh!!

Actually looking at it again it is wrong isn't it?

and just to prove to people why my DS needs a tutor!!

[penguin]

Hi Doodles and Manana


It looked like gobbledygook to me when I first saw it I'm not sure I understand the question - but now hanging on to glory via Doodle's coat tails the examples were multiplied up in a two stage process, but missed doing it on the actual question

So 5 x 3 = 15 and then 15 x 3 = 45

So 5 (15) 45

[patricia]

4 (12) 36 2 (6) 18


5 ( ) 45

I just can't see it!!

The numbers either side of the brackets are used to make the number inside the brackets. Sometimes you only have to use 1 operation, sometimes 2 and sometimes 3.

36 minus 4 = 32
How do you get from 32 to 12 = minus 20 [left x 5]

18 minus 2 = 16
How do you get from 16 to 6 = minus 10 [left x 5]

45 minus 5 = 40
40 minus 25 [left x 5] = 15

Patricia

[doodles]

So if I had followed my own process I would have got the same answer as you. Story of my life really!!!!!!

[programmer]

For: A (B) C

B = A * 3
C = A * 9

[Orson]

For: A (B) C

A = B/3
A = C/9
------------
B = A x 3
B = C/3
------------
C = A x 9
C = B x 3

[DC17C]

For: A (B) C

B = A * 3
C = A * 9

Now that is rather neat
where is that "Like" button??

do we know for definite 15 is the answer?

[wellprepared]

Hello
For A(B)C
In this case B=2xA+C/9
hope it makes sense.
Thanks

[Orson]

DC17C - Of course it's 15!

With respect, Patricia, doesn't your method over-complicate things?

wellprepared - but that's not true!

If B=2xA+C/2
Then 5 ( ) 45 would be 5 (32.5) 45
Or have I lost the plot?!

Ah, you have since changed your equation!