Mathematics
Grade-4-
Easy
Question
Smith creates a pattern using the rule “Each layer has 3-blocks”.
The number of cubes in the next in Smith’s pattern is
- 10
- 12
- 13
- 16
Hint:
We are given a pattern of blocks of number of cubes made by Smith. The rule used to make pattern is “Each layer has three blocks”. There are four shapes. We have to find the number of cubes used to make the next shape.
The correct answer is: 13
We are given a pattern with number of cubes. The rule used to make the pattern is “Each layer has three blocks”.
One layer is added every time. With each layer, 3 blocks are added.
The number of cubes in the first shape is 1
The number of cubes in the second shape is (1 + 3) = 4
The number of cubes in the third shape is (4 + 3) = 7
The number of cubes in the fourth shape is (7 + 3) = 10
So, the number of cubes in fifth shape will be (10 + 3) = 13
The number of cubes in the next shape will be 13.
While solving such questions, we should be careful about order of the sequence.
