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3, 5, 8, 13, 24, 39, 72
FIND THE WRONG NUMBER
- 14 Answers
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Answer / niks_shs
3*2-1=5
5*2-2=8
8*2-3=13
13*2-4=22
22*2-5=39
39*2-6=72
so series is 3,5,8,13,22,39,72
24 should be replaced by 22
24 is wrong.......
| Is This Answer Correct ? | 36 Yes | 0 No |
Answer / anirban bose
24 is the wrong answer.
5=3*2-1
8=5*2-2
13=8*2-3
22=13*2-4
39=22*2-5
72=39*2-6
So it should be 22 in place of 24.
| Is This Answer Correct ? | 17 Yes | 5 No |
Answer / brijesh
The wrong Number is 24.
Lets see how....
Given series of no. is.. 3, 5, 8, 13, 24, 39, 72
3*2-1 = 5
5*2-2 = 8
8*2-3 = 13
13*2-4= 22
22*2-5= 39
39*2-6= 72
So here we can see that 4th no. of serious will be 22 not 24.
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / tarun gavel
24 is wrong, this is series like 2^0+2=2,
2^1+2=3....2^3+5=13, 2^4+6=22, 2^5+7=39.
So answer is- 24 is wrong number.
| Is This Answer Correct ? | 11 Yes | 5 No |
Answer / guest
ans.5
Series is like
3+5=8
5+8=13
8+13=21
so 24 is the wrong number.
| Is This Answer Correct ? | 17 Yes | 12 No |
Answer / n.v.kiran
THE WRONG NUMBER IS 24 BECAUSE IF U OBSERVE SECOND NUMBER 5
IT IS OBTAINED BY MULTIPLYING FIRST BY 2 AND SUBSTRACTING
BY 1.SIMILARLY,8 IS OBTAINED BY 5*2-2=8. S0 TEH SEQUENCE IS
3 5((3*2)-1) 8((5*2)-2) 13((8*2))-3) 22((13*2)-4) 39((22*2)-
5) 72((39*2)-6).
SO 22 IS THE CORRECT ANSWER.
| Is This Answer Correct ? | 7 Yes | 2 No |
Answer / chetan mekha
3*2=6
6-1=5
5*2=10
10-2=8
8*2=16
16-3=13
13*2=26
26-4=22 so 24 is incorrect number in series (all correct plz)
22*2=44
44-5=39
39*2=78
78-6=72
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / karthikeyan
The wrong Answer is 39.
Bcoz
5-3=2 2 is a prime number
8-5=3 3 is a prime number
13-8=5 5 is a prime number
24-13=11 11 is a prime number
39-24=15 15 is not a prime number
So after 11 the next prime number is 17. If we are add 24
with 17 we will get 41. Then we sunstract 72-41=31 is the
prime number.
| Is This Answer Correct ? | 5 Yes | 5 No |
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