Latest IBM Aptitude Question SOLUTION: Q. What is the next number of the following sequences 1. 12,3,15,14,6,19,16,9,23,18,12,... 2. -15,-14,34,32,42,39,58,54,61

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Q. What is the next number of the following sequences

1. 12,3,15,14,6,19,16,9,23,18,12,...

2. -15,-14,34,32,42,39,58,54,61

Asked In IBM NIDHI GUPTA (10 years ago)

Unsolved Read Solution (12)

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Read Solution (12) :

Payal Dream  (10 years ago)

2.
-15(-1) -14
34(-2) 32
42(-3) 39
58(-4) 54
61(-5) 56

Is this solution Helpfull? Yes (13) | No (4)  

akhilesh kumar  (10 years ago)

1)
12,3,15,14,6,19,16,9,23,18,12,...
15+4=19
19+4=23
23+4=27
ans is 27
OR
12+3=15-0=15
14+6=20-1=19
16+9=25-2=23
18+12=30-3=27

SO ANS IS 27


2)
-15,-14,34,32,42,39,58,54,61
I THINK QUESTION IS WRONG
-15-(-14)=-15+14=-1
34-32=2
42-39=3
58-54=4
61-56=5
SO ANS IS 56
BUT I'M NOT CONFORM BRO

Is this solution Helpfull? Yes (12) | No (2)  

madhuri gupta  (10 years ago)

1. 12+3=15 -0
14+6=20 -1
16+9=25 -2
18+12=30 -3 =27ans

2. -15 -14 +1
34 32 -2
42 39 +3
58 54 -4
61 +5 =66 ans

Is this solution Helpfull? Yes (4) | No (10)  

shilpi mathur  (10 years ago)

ans 1. divide the series in group of three nd then subtracting 1st no wid 3rd no, we get 2nd digit as....
12,3,15 :- 15 - 12 = 3-0=3
14,6,9 :- 19 - 14 = 6-1=5
16,9,23 :- 23 - 16 = 9-2=7
18,12,x :- x - 18 = 12-3=9
so x is 27. ans 27

Is this solution Helpfull? Yes (3) | No   

siva roopa  (10 years ago)

1. divide the solution into 4 rows which contains 3 numbers in each.
12, 3, 15
14, 6, 19
16, 9, 23
18, 12, ?
here observe 3rd column that
15+4=19
19+4=23
same as above we get
23+4=27
ans. 27

Is this solution Helpfull? Yes (3) | No   

samyuktha  (10 years ago)

27,its an alternate series

Is this solution Helpfull? Yes (2) | No   

vinodreddy kasireddy   (10 years ago)

1:12 14 16 18 +2
3 6 9 12 +3
15 19 23 27 +4

Is this solution Helpfull? Yes (2) | No   

sravanthi  (10 years ago)

(12,3,15)(14,6,19)(16,9,23)(18,12,x)
1st term:12,12+2,14+2,16+2
2nd:3,3*2,3*3,3*4
3rd:15,15+4,19+4,23+4
so Ans:27

Is this solution Helpfull? Yes (1) | No   

himabindu  (10 years ago)

12+3=15-0=15
14+6=20-1=19
16+9=25-2=23
18+12=30-3=27
so,Ans=27

Is this solution Helpfull? Yes (1) | No   

shubham  (10 years ago)

-15 -14 +1
2) -15 -14 +1
34 32 -2
42 39 +3
58 54 -4
61 +5 =61 ans

Is this solution Helpfull? Yes | No (4)  

Iswariya Fernando  (10 years ago)

1. 12+3 =15
14+6 =20 (-1) = 19
16+9 =25 (-2) = 23
18+12=30 (-3) = 27

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ANUSHA BOGGAVARAPU  (10 years ago)

1.12+3=15,15-1=14,
14+6=20-1=19,19-3=16,
16+9=25-2=23,23-5=18,
18+12=30-3=27,27-7=20
so,ans is 27

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