Input. Output

12. 10
16
32.
62. 35
70. 39
86

What is the rule I am in 5 th grade and have no clue

same question was posted last year

http://www.jiskha.com/display.cgi?id=1321252606

Based on the given input and output pairs, it appears that there is a rule involving subtraction and addition. Let's analyze the pattern step-by-step to identify the rule.

Input: 12
Output: 10, 16

To go from 12 to 10, we subtract 2. To go from 12 to 16, we add 4. This suggests that the rule may involve alternating between subtraction and addition. Let's continue with the remaining pairs.

Input: 32
Output: ?

To find the output for 32, we can start with subtracting. If we subtract 2 from 32, we get 30. However, this does not match the given output of 35. Let's check if adding instead of subtracting gives the desired output.

If we add 4 to 32, we get 36, which is still not the desired output of 35. This means that our initial assumption of alternating between subtraction and addition may not be correct. Let's move on to the next pair.

Input: 62
Output: 35

To find the output for 62, we can observe that subtracting 27 from 62 gives us the desired output. So, the pattern for this pair is subtracting 27.

Input: 70
Output: 39

To find the output for 70, we can observe that subtracting 31 from 70 gives us the desired output. So, the pattern for this pair is subtracting 31.

Input: 86
Output: ?

To find the output for 86, let's check if subtracting or adding a specific number gives us the desired output.

Subtracting 25 from 86 gives us 61, which is not the desired output. Adding 4 to 86 gives us 90, which is also not the desired output. Therefore, neither subtraction nor addition matches the pattern observed in the given set of input-output pairs.

Based on the available information, we can determine that the pattern for the input-output pairs is not consistent. Additional pairs or information might be needed to identify the underlying rule.

To determine the rule for the given inputs and outputs, let's look at the pattern between the input and its corresponding output:

Input: 12 -> Output: 10
Input: 32 -> Output: 16
Input: 62 -> Output: 35
Input: 70 -> Output: 39
Input: 86 -> Output: ?

To find the rule, we need to observe what happens to the input and how it relates to the output. Let's break down each example:

- Input 12: To get the output 10, we subtract 2 from the input. 12 - 2 = 10.
- Input 32: To get the output 16, we subtract 16 from the input. 32 - 16 = 16.
- Input 62: To get the output 35, we subtract 27 from the input. 62 - 27 = 35.
- Input 70: To get the output 39, we subtract 31 from the input. 70 - 31 = 39.

Based on the given examples, it appears that the rule is to subtract a certain number from the input to obtain the output. To find this number, we need to identify a pattern in the differences between the input and output.

Let's calculate the differences between the input and output for each example:

Difference (Input - Output):
12 - 10 = 2
32 - 16 = 16
62 - 35 = 27
70 - 39 = 31

Looking at the differences, we can see that they are increasing by 1 each time. To find the number to subtract from the input, we need to determine the next difference. The next difference should be 31 + 1 = 32.

To find the missing output for the input 86, we subtract 32 from the input:
86 - 32 = 54

Therefore, the missing output for the input 86 is 54.

So the rule is: Subtract a number that increases by 1 each time from the input to get the output.