Mathematics
Grade-4-
Easy
Question
What are the next two numbers in given sequences by following the rule?
Rule: multiply 3
- 162, 456
- 172, 516
- 162, 486
- 172, 526
Hint:
We are given a sequence of numbers. We have been told that the rule used to form the sequence is multiply by 3. We have to continue the sequence and find the next two numbers. We will use the rule to find the required numbers.
The correct answer is: 162, 486
The given sequence is 6, 18, 54
We have to find the next two terms in this sequence.
Rule: Multiply by 3
To find the next term, previous term is multiplied by 3
We will see how it works.
6 × 3 = 18
18 × 3 = 54
Now, let’s find the next terms.
The last term from the above sequence is 54.
So, we will multiply the term by 3.
54 × 3 = 162
This will be our new first term. We will take this term and add multiply by 3 to get the next term.
162 × 3 = 486
The complete sequence will be 6, 18, 54, 162, 486.
And the option which is '162, 486’, is the required option.
For such questions, we should know the basic operations. When the rule used to write the pattern is not mentioned, we have to use all four operations to check the pattern. The operations are addition, subtraction, division, and multiplication.
