The numbers below are arranged according to a
certain rule. Once you've worked out the rule,
fill in the missing number. The number seven in
the final circle is not a typographical error.
Answers
Answer:
Answer is 12
Step-by-step explanation:
Consider the first two circles and add digits of both numbers
i.e (7+2) + (9+9)
= 9 + 18
=> 27.
In the same way, from second pair of circles,
(2+7) + (4+5)
= 9 + 9
=> 18
Now also consider the last pair of circles,
(1+3) + (2+1)
=4 + 3
=> 7
By following this pattern, we can find the answer
i.e 2+1 + 3+6
= 3 + 9
=> 12
So, 12 is the answer.
REQUEST:
If you like the answer and explanation, please mark as brainliest.
Missing number is 12.
Step-by-step explanation:
The rule followed to arrange the number is such that the number in the following row is the grand sum obtained by adding the number formed by the sum of digits of the two numbers in the previous row.
First row: 72 and 99
Sum of the digits will be 9 and 18.
Adding these two resultant numbers gives 27.
Last row: 13 and 21
Sum of the digits will be 4 and 3.
Adding these two resultant numbers gives 7.
Missing Number:
Sum of digits of 21 and 36 is 3 and 9.
Adding them both, we get 3 + 9 = 12.
Missing number is 12.