The number at top should be 33
Number pyramid
It is a pyramid of numbers is a graphical representation that shows the number of organisms at each trophic level.
How to solve this problem?
- We have to start from down.
- By observing we can see that next level is addition of down level
- Therefore,
First level = 3,4,5,3
∴ 3+4=7
∴ 4+5=9
∴ 5+3=8
- So, next numbers are 7,9,8. Now to find next level we have to do addition of these numbers
Second level = 7,9,8
∴ 7+9=16
∴ 9+8=17
- Third level number are 16,17. So to find top number we have to add third level numbers.
Third level = 16,17
∴ 16+17=33
Therefore after adding numbers the number at top should be 33
Learn more about number pyramid at:
https://brainly.com/question/1288463
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