Q182
Find the missing number?
Find the missing number?
A.
1
AnswerB.
8
C.
4
D.
7
Answer: Option A
Solution
Answer: Option A
Solution:
Splitting the diagram into 3 smaller triangles, with 3 circles each, the sum of the numbers in each smaller triangle is always 21. So,
3 +7 + 11 = 21.
5 + 12 + 4 = 21.
10 + 10 + x = 21.
x = 1.
Missing Number = 1.