2, 10, 30, 68, 130, _____
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Answer / anoop
1*1*1+1,2*2*2+2,3*3*3*+3,4*4*4+4,5*5*5+5,6*6*6+6
2 ,10 ,30 ,68 ,130 ,222
| Is This Answer Correct ? | 408 Yes | 36 No |
Answer / guest
Find the difference between numbers like:
10-2=8
30-10=20
68-30=38
130-68=62
again find the diff.
20-8=12
38-20=18
62-38=24
the diff. is increasing by 6. so the next diff. should be
30. add this 30 to find the first diff. which is 62+30=92.
add this 92 to 130 you will get 222.
| Is This Answer Correct ? | 167 Yes | 46 No |
Answer / vijay hatila
1*1*1 1=2
2*2*2 2=10
3*3*3 3=30
4*4*4 4=68
5*5*5 5=130
6*6*6 6=222
| Is This Answer Correct ? | 72 Yes | 13 No |
Answer / aldiderheiner
p(x) = (x-1)^3 + 3(x-1)^2 + 4(x-1) + 2
p(x) = x^3 - 3x^2 + 3x - 1 + 3(x^2 - 2x + 1) + 4x - 4 + 2
.....
p(x) = x^3 + x
| Is This Answer Correct ? | 7 Yes | 3 No |
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