Mathematics
Grade-4-
Easy
Question
Lin creates a pattern using the rule “Each layer has 4-blocks”.
The number of cubes in the next shape in Lin’s pattern is
- 12
- 16
- 20
- 24
Hint:
We are given a pattern of blocks created by Lin using number of cubes. The rule used to make pattern is “Each layer has four blocks”. There are three shapes. We have to find the number of cubes used to make the fifth shape.
The correct answer is: 16
We are given a pattern with number of cubes. The rule used to make the pattern is “Each layer has four blocks”.
The number of cubes in the first shape is 4.
The number of cubes in the second shape is (4 + 4) = 8
The number of cubes in the third shape is (8 + 4) = 12
One layer is added every time. With each layer, 4 blocks are added.
So, the number of cubes in the fourth shape will be (12 + 4) = 16.
The main part of the question is the rule used to make the pattern.
