Question

Find the number missing: 2 -> 4 -> 7 -> 11 -> 16 -> ???

Answer 1

It is very easy 

Answer 2

là số 27

Answer 3

2 -> 4 -> 7 -> 11 -> 16 -> 22

Answer 4

The anser is number 22.

Answer 5

2\(\Rightarrow\)4\(\Rightarrow\)\(\Rightarrow\)7\(\Rightarrow\)11\(\Rightarrow\)16

Chúc bn hok tốt !!

Answer 6

Now , see : 

\(2=1+1\)

\(4=\left(1+2\right)+1\)

\(7=\left(1+2+3\right)+1\)

\(11=\left(1+2+3+4\right)+1\)

\(16=\left(1+2+3+4+5\right)+1\)

So \(1+2+3+4+5+6+1=22\)