Question

Look at this sequence of numbers: 0, 1, 2, 4, 6, 9, 12, 16, ? - what number should replace the question mark?

Answer 1

missing number is 20.

This is based on reasoning, missing number

you can get the solution easily,if you get the relation between given terms.

let's try to find out relation between them.

0, 1, 2 , 4, 6, 9, 12, 16 , ?

here we see,

1 - 0 = 1

2 - 1 = 1

4 - 2 = 2

6 - 4 = 2

9 - 6 = 3

12 - 9 = 3

16 - 12 = 4

so, next term will be , x - 16 = 4

x = 16 + 4 = 20

hence, missing number is 20.

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Answer 2

Answer:

20

Step-by-step explanation:

2 * 1 , 2*2 , 3 *2 , 3*3 , 4*3 ,4*4 , 5*4.

2 , 4 , 6 , 9 ,12 ,12 ,16,20