Find a solution to an intelligence test, an intelligence test question

For the sake of description, the twelve balls are numbered 1-12 in order, starting with x (..)Remember the goal ball suspicion set. Initially: x

i. Take l(1,2,3,4),r(5,6,7,8), and weigh for the ith time:

a, flat, then x (9 12);

b. No, then x (1 8);

ii(a), take l(1,2,3),r(9,10,11), ii weighing:

a, flat, then x (12);

b. No, then x (9,10,11);

II(B), take L(1,2,7),R(3,4,5), II

a, flat, then x (6,8);

b+, the inclination is the same as i(a), then x (1,2,5);

b-, the tendency is different from i(a), then x (3,4,7);

iii(aa), take l(1), r(12), third weighing:

Determine whether x=12 is light or heavy.

iii(ab), take l(9), r(10), third weighing:

Ping, then x=11, check the record of ii(ab) to judge its severity.

If the inclination is the same as ii(ab), then x=10, and its severity is judged at the same time.

If the inclination is different from ii(ab), then x=9, and its severity is judged at the same time.

iii(ba), take l(1), r(8), third weighing:

flat, then x=6, check the record of i(b) to judge its severity.

If no, x=8 and determine its severity.

iii(bb+), take l(1), r(2), third weighing:

Ping, then x=5, check the record of II(bb+) to judge its severity.

The tendency is the same as ii(bb+), then x=1, and its severity is judged at the same time.

If the tendency is different from ii(bb+), then x=2, and the severity is judged at the same time.

iii(bb-), take l(3), r(4), third weighing:

Ping, then x=7, check the record of II(bb-) to judge its severity.

The inclination is the same as ii(bb-), then x=4, and its severity is judged at the same time.

If the tendency is different from ii(bb-), then x=3, and the severity is judged at the same time.

Resources.

Upstairs really made an extraordinary move.

Analysis: "The third person took the remaining half and half at this time, and then took it all".

The third person took only one, that is, after the second person took it, there was only one left.

From "the second person took the remaining half and most of it", it can be calculated that the first person has taken the rest:

1) The number of "the first person takes half plus half" is:

3) The comprehensive equation is:

A: Originally, there were 7.

This is a misleading question, the boss returned 5 yuan, and the waiter hid 2 yuan. The money paid by each guest should be counted as follows: 25 3+1Each person came out of the yuan. After multiplication, add two to exactly 30.

The equations are all wrong! In total, it only cost 3*9=27 yuan;

And this 27 = 25 + 2;That is true.

That equation is misleading!

In fact, it was 25 yuan at the boss's place, 2 yuan at the waiter's place, and 9 yuan per person. 3x9=27

I choose H, I solve it like this, first of all, this is a nine-palace figure, since there are forks, triangles, circles, it is more complicated, I look at these three kinds of figures separately, I compare them horizontally.

1.First of all, I looked at the fork, the first row, and the fork of the second row I found the rule, that is, there is a same fork in the same grid, that is, the seventh grid, and coincidentally the fork of the third row also has two identical, I infer that the third fork of the third row (that is, the answer) is also in the second grid, here only the answer h is suitable, of course, this may also be just a coincidence.

2.Then let's look at the circle, o in the first and second lines of the law I see it like this, that is, each row has only two circles adjacent, so I guess that the third line also has only one circle in the nine-square chart is adjacent, then it proves that the circle in the grid of the answer cannot be adjacent, and only the h answer is suitable.

3.The triangle is not visible for the time being, let me think about it again.

Take a seat and wait for the answer, lest the question run away!

Well, you can only rely on luck when it comes to this kind of problem.