Next in series question I can't get!

smndly

Here is a link to a question I have been stuck on for ages. Anyone able to figure it out?

https://docs.google.com/document/pub?id=1_X_dOPrMW8REmoDGBbbAAgney09Dayegeob4Tvn4jMM

Your Airbag

10
---- 120
12

**Timbuk2**

I thought that as well, Your Airbag, but from looking at the question I think you have to pick it from A, B, C, D, E - so I'm not sure (yet) what the answer is!

smndly

yeah, You have to pick from A,B,C,D or E. I know the answer (back of the book!) but i don't know how you get to it. I won't ruin it for you though!!

mahblah

I'll say D?

If you take the top number in one block, and multiply it by the bottom number in the block to the right of it, the result is put in the top spot of the block two to the right of the original block. i.e. 4*2=8 in the example.

smndly

No, im afraid that's not right! Well going by the answer i was given.

Your Airbag

**Timbuk2** wrote: »

I thought that as well, Your Airbag, but from looking at the question I think you have to pick it from A, B, C, D, E - so I'm not sure (yet) what the answer is!

Either could I so I came up with my own

muff03

i'm going with B, but my reasoning is only based on making the answer fit rather than proper progression

Ah nuts

I would go with e as the previous number 32 has to be redistributed and the bottom number remains the sane as the time before as it only changes every second time. My backup answer would be a.

Thoie

I'm going with C purely on guess work.

The bottom row is 2, 2, 4, so I'm taking it as 0,2,2,4. Then 0+2=2, 2+2=4, 2+4=6, so I'm putting 6 on the bottom row, leaving me with A or C as possibles. I'm picking C, as 28 appears twice, leading me to believe the top box is more likely to be a 28, but now I'm too tired to figure out how we get 4,6,8,28

sponsoredwalk

My answer is

E because of the 6 + 2 = 8, 4 + 8 = 12 & 28 + 4 = 32
pattern as well as the fact that the bottom blocks are in a 2, 2, 4, ? pattern
implying that it must be 4 instead of 6 as the only possibility to get 32.

Hope that makes sense!

Davidius

sponsoredwalk wrote: »

My answer is

E because of the 6 + 2 = 8, 4 + 8 = 12 & 28 + 4 = 32
pattern as well as the fact that the bottom blocks are in a 2, 2, 4, ? pattern
implying that it must be 4 instead of 6 as the only possibility to get 32.

Hope that makes sense!

I'm not sure I've followed your reasoning of choosing 4 correctly. I'm assuming you mean that it satisfies some sort of doubling pattern, which doesn't seem like sufficient reason because we only see one prior instance of it.

4 does satisfy a pattern where the bottom block of an element is equal to (top block-bottom block) from the previous member of the sequence though. Here's an illustration of what I mean:

http://i.imgur.com/Nrc6E.gif (<-Spoiler)

brophya2007

I'm going to say E

MathsManiac

I'd go for

A:

As has been pointed out by others, the two numbers in the left-hand part of each piece are found by divvying up the number in the right of the previous block. This leaves A or E as the possibilities. Wheras SponsoredWalk then goes for E, on the basis the best guess for 2,2,4,? is 4, I'd go for the 6, on the basis of adding the previous two numbers.

It's a bit dodgy either way!

smndly

Hey guys, good work the answer is E! I could get the redistribution of the number 32 but I was unable to logically say that the answer is E and not A. I think Davidius has the best solution. It makes logical sense by simple subtraction. Thanks

I have another one now though which I can't even get a start on.


OT > OTT > OTTF > OTTFF > ?


Select the option that comes next in the series:
A: OTTFFS
B: OTTFFU
C: OTTFFO
OTTFFX
E: OTTFFZ

MathsManiac

That's easy:

A

smndly

Yeah!! How did you get that? I've looking at this for hours!!

LeixlipRed

Look at it a sixth time and you'll get it I reckon

bnt

smndly wrote: »

Yeah!! How did you get that? I've looking at this for hours!!

It just helps to have seen this one before, I think:

One Two Three Four Five Six