Question

Given is the set of nine numbers that relate to each other in a certain way. Determine the missing

number in the second set. Assume the second set also works in the same way as the first set.(With explaination please)​

Answer 1

Answer:

4+2+6=12

5+2+8=15

6+1+11=18

8+8+8=24

9+10+8=27

so here the difference of sums of digits in each row = 3

so 7+5+? should be 21

so 7+5+9=21

so answer = 9

Step-by-step explanation:

Answer 2

Answer:

The missing number is 9.

Step-by-step explanation:

We know that the given set of numbers is a number sequence.
A number sequence is a list of numbers that are linked by a rule.

To identify the rule, we keep the following things in mind -

• We check for a sequence with regards to arithmetic operators.
• If the above sequence is missing, then we check for exponents and their roots.

Now, we check for the rule, in order to identify the number sequence.

By observing the 2 sets, we come to realize a pattern between them.

The difference between the sums of digits in each row is 3.

$4+2+6 = 12\\5+2+8=15\\6+1+11=18\\7+5\;+\;? = 21 (by\;the\;sequence)\\8+8+8 = 24\\9+10+8=27$

Thus, by solving the equation with the given sequence, we get that the missing number is 9.

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