find missing number in series? 4,18?100,180,294,448
Answers
Answered by
4
Series is in the form of n(n+1)²
Where n starting from 1
n>=1 and n<=7
Take a Look at this series :
1*2² = 4
2*3² = 18
3*4² = 48
4*5² = 100
5*6² = 180
6*7² = 294
7*8² = 448
So, again answers is 48.
Answered by
1
Answer:
You can find this series by many ways.
Take a look
Solution I.
Series is (n³-n²)
Where n starting from 2
n>=2 and n<=8
Take a Look at this series :
2³- 2² = 8 - 4 = 4
3³ - 3² = 27 - 9 = 18
4³ - 4³ = 64 - 16 = 48
5³ - 5² = 125 - 25 = 100
6³ - 6² = 216 - 36 = 180
7³ - 7³ = 343 - 49 = 294
8³ - 8³ = 512 - 64 = 448
So, answers is 48.
Solution ii.
Series is in the form of n(n+1)²
Where n starting from 1
n>=1 and n<=7
Take a Look at this series :
1*2² = 4
2*3² = 18
3*4² = 48
4*5² = 100
5*6² = 180
6*7² = 294
7*8² = 448
So, again answers is 48
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