Find the missing character from among the given alternatives.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 21
The first two triangles show the rule: the product of the three outer numbers, divided by 10, gives the number in the middle.
First triangle: \(5\times6\times4=120\), and \(120\div10=12\)
Second triangle: \(4\times8\times10=320\), and \(320\div10=32\)
Third triangle: \(6\times7\times5=210\), and \(210\div10=\) 21