Solve numerical reasoning puzzles, numerical reasoning, ask for help

I. 257,271,281,292,(

In the future, I will have you in my heart

Pick B two, 4, 12, 30, 68, (

In the future, I will have you in my heart

5 3+3=128 So there is no answer, so let's continue.

2a+4，6，8，9，10。。=c

or 2a+4,6,8,10,12. =c

Pick b three, -2, 1, -8 27, 1 16, (a.).-32/3125 c.-64/3125 d.-128 3125 I will have you in my heart in the future

Molecules are crossed over positively and negatively.

The denominator is 1,2,3,4,5 of 1,2,3,4,5 times a

LZ is a civil servant

8 27 = (-2 3).

1 16 = 1 2 to the fourth power.

So the latter number should be to the fifth power of x.

It can be seen that the base number is 2 n

So the fifth number is -2 to the fifth power of 5.

So choose A

1. B The last digit minus the previous digit is equal to the single digit of the previous digit 10 digits and 2, b can be seen with sn=(sn+n+1)*2 to see three, a (-1) n*(2 n n n).

This is just made and I hope it helps you.

Option B Problem Solving Process:

The first step is to divide the whole number into fractions 1 1 3 3 5 5 17 7 The second step is to separate the numerator and denominator: the numerator is 1 3 5 17, and the law is 1 3+2=5 3 5+2=17 The following number is 5 17 + 2 = 87;The denominator is the difference series 1 3 5 7 and the next one is 9

To sum up, the answer is to choose Grip Ode B 87 9

The answer is d 1 4 The first three numbers are 8 6 4, and the difference between the two numbers is 2. From this, it can be seen that the difference between the two before and after the last three numbers should also be the same. 9 4 is 4 4 different from 5 4, so the last number should be 4 4 different from 5 4, i.e. the last number is 1 4

Strictly speaking, there is no pattern.

According to the method of equal difference: 8-2 = 6-2 = 4, 4-9 4 = 7 4. And 9 4-5 4 = 4 4.

With the expansion coefficient method: original, 32 4;24/4；16/4；9/4；5/4 ..The difference in the molecules is , and there is still no regularity to speak of.

…The core of the cave shouted grinding .........

The answer is 100 = 4 25 = 4 (21 + 8 2).

10 Each two items are divided into a group, i.e. the term is a group of items and the term is a group...

Each group is summed. The sum of the first set of two numbers is 2

The sum of the two numbers in the second group is 4 (2*2).

The sum of the three numbers is 8 (4*2).

It can be seen that the sum of the numbers in each group is equal to 2 times the number of the previous group.

The sum of the four sets of two numbers should be 8*2=16

So the numbers in parentheses are 16-6=10

1.If you choose a ruler to play fierce B

34 should be 1520

is a series of equal differences, and the next number is 19

It is also a series of equal differences, and the next number is Lingqiao 25

This is 1925 due to missing answers

As can be seen from the question, odd terms are negative and even terms are positive.

The second question I think should be C

So the fourth should be combined into 8 and be positive. Only C can be selected

521 d

522 b523 d The first three five numbers Numerator 2, denominator 3, 5, 7 The second four six numbers, numerator 1, the denominator is 4 (2 squared), 9 (3 squared), 16 (4 squared).

524 A Each number is the square of another number - 1, and the law of the other number is 2, 3, 5, 7, 11, all of which are prime numbers, and the next prime number is 13, so it is a

525 a 0=1 squared 0,4=2 squared 1,18=3 squared 2,100=5 squared 4, so the fourth number should be 4 squared 3=48

I didn't come up with the first and second questions.

See the address below for an explanation.

, 24, 60, 132, (276) is 1*6, 4*6, 10*6, 22*6, 46*61, 4, 10, 22, 46, 3, 6, 12, 24 (proportional series) 6, 18, (42), 78, 126 difference 12, 24, 36, 48 (proportional series), 18, 54, (123), 210 are all divisible by 3. , 12 is given as x, ya takes the same time to complete 1 3 as b to complete 1 2 --: x 3 = y 2---

x y=3 2, only d matches. "

521 a

The number of complete sequences for this problem is 4 , 9 , 1 , 4 , 3 , 40

One of the alternative answers is correct, which is 121

The law is that the remainder of this sequence of numbers divided by 3 is arranged periodically.

The permutation period is 1, 0, 1, 1, 0, 1, 1, 0, 1, etc.

Since the original question is a multiple-choice question, only the remainder after dividing 121 by 3 fits this period, i.e., the remainder is 1

If it's not a multiple-choice question, then there can be a lot of answers, all the numbers that are divided by 3 to 1.

522 b answer is 35. Parsing process:

And (76-x)-(x-21)=27=3 3

So x=35

523 d odd term denominator equal difference even term denominator is the square number so is 3 squared.

524 a2 squared minus 1,3 squared minus 1,5 squared minus 1,7 squared minus 1,11 squared minus 1,13 squared minus 1

525 The number of a terms minus 1 The square of the number of multiplier terms For example, the second term is (2-1) multiplied by 2 squared.