Complete the series 2, 7, 24, 77,__
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Answer / shylu
238 s d correct answer
2___7____24____77____
7=[2*3]+1
24=(7*3)+3
77=(24*3)+5
238=(77*3)+7
multiplying the previous terms by 3 and adding it to the odd
numbers
| Is This Answer Correct ? | 147 Yes | 14 No |
Answer / nishant madan
i think 238 is correct answer
2_____7_____24______77_______x
difference between consecutive terms are give below as
5_____17_____53_______y
now 17=(5*3)+2
53=(17*3)+2
therefore,
y=(53*3)+2=161
also,
x-77=y=161
therefore x=238.
| Is This Answer Correct ? | 68 Yes | 8 No |
Answer / kunal
2=3^1-1
7=3^2-2
24=3^3-3
77=3^4-4
so
next no=3^5-5=238
ans=238
| Is This Answer Correct ? | 28 Yes | 6 No |
2*12=24
7*11=77
24*10=240
77*9=693
so the series is 2,7,24,77,240,693,....
so answer is 240.
| Is This Answer Correct ? | 6 Yes | 6 No |
Answer / manikandan raj
first find the difference between the adjacent number...
7-2=5
24-7=17
77-24=53
Now find the relation between the difference...
(5*3)+2=17
(17*3)+2=53
(53*3)+2=161
| Is This Answer Correct ? | 0 Yes | 4 No |
Answer / priyanka
This is an combination of two series.so
2,7,24,77--->2*12=24 and 7*11=77
so next multiplication value will be 24*10=240.
Ans:240
| Is This Answer Correct ? | 12 Yes | 17 No |
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