Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 17)
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much
17.
Look at this series: 2, 6, 18, 54, ... What number should come next?
Answer: Option
Explanation:
This is a simple multiplication series. Each number is 3 times more than the previous number.
Discussion:
42 comments Page 5 of 5.
Poonam said:
1 decade ago
Multiply first by 2 and add to original number and the multiplied answer:
2*2=4; 2+4=6.
6*2=12; 6+12=18.
18*2=36; 18+36=54.
54*2=128; 128 + 54=Answer.
2*2=4; 2+4=6.
6*2=12; 6+12=18.
18*2=36; 18+36=54.
54*2=128; 128 + 54=Answer.
Varun said:
1 decade ago
Very easy multiply with 3.
2*3 = 6.
6*3 = 18.
18*3= 54.
54*3 = 162.
So answer is 162.
2*3 = 6.
6*3 = 18.
18*3= 54.
54*3 = 162.
So answer is 162.
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