IBM
Company
Numerical Ability
Sequence and Series
What is the next number of the following sequence
49,7,98,16,4,48,9,3,36,25,5,125
Read Solution (Total 14)
-
- 7^2=49
49*2=98
(7-3==>4)subraction of odd number
4^2=16
16*3=48
(4-1==>3)subraction of odd number
3^2=9
9*4=36
(3+2==>5)addition of even number
5^2=25
25*5=125
(5+4==>9)addition of next even number
9^2=81
81*6=486
ans:81,9,486
- 10 years agoHelpfull: Yes(13) No(6)
- (49,7,98),(16,4,48),(9,3,36),(25,5,125),(x,y,z)
in each groups 2nd element^2 = 1st element
thus we need to find y first to get the value of x ..
thus consider only 2nd term of each group ...
(_,7,_) , (_,4,_) , (_,3,_) , (_,5,_)
now 7-4 = 3 -| 3-1 = 2
4-3 = 1 -|
3-5 = -2 -| 1-(-2) = 3
i.e. 5-y = k -| -2-k=4 -> k=-6
i.e. 5-y=k -> 5-y=-6 -> y=11
therefore x = y^2 -> 11^2 -> 121
(121,11,726) - 10 years agoHelpfull: Yes(12) No(8)
- 36,6,216 simply
- 10 years agoHelpfull: Yes(7) No(5)
- (7^2,7,7^2*2),(4^2,4,4^2*3)(3^2,3,3^2*4),(5^2,5,5^2*5),(6^2,6,6^2*6)
- 10 years agoHelpfull: Yes(6) No(2)
- 7X7=49
49X2=98
4X4=16
16X3=48
3X3=9
9X4=36...and so on
http://www.getaheadofthegames.com/best-cooking-games - 10 years agoHelpfull: Yes(5) No(35)
- give proper ans pls
- 10 years agoHelpfull: Yes(4) No(2)
- 36*6=216 ans
so x=36
y=6
z=216
- 10 years agoHelpfull: Yes(3) No(5)
- 36*6=216 ans
so x=36
y=6
z=216 - 10 years agoHelpfull: Yes(2) No(3)
- ans is 36 6 216
- 9 years agoHelpfull: Yes(2) No(1)
- 7^2=49
49*2=98
(7-3==>4)subraction of odd number
4^2=16
16*3=48
(4-1==>3)subraction of odd number
3^2=9
9*4=36
(3+2==>5)addition of even number
5^2=25
25*5=125
(5+4==>9)addition of next even number
9^2=81
81*6=486
ans:81,9,486
- 9 years agoHelpfull: Yes(2) No(0)
- (49,7,98),(16,4,48),(9,3,36),(25,5,125),(x,y,z)
(7^2,7, 7^2*2)
98/7=14; 14 -(7+3)= 4; (4^2, 4, 4^2*3).
48/4=12. 12-(4+5)=3; (3^2,3,3^2*4). next series, we know (25,5,125)
36/3=12. 12-(3+y)=5.. y=4. So the last series would be (4^2, 4, 4^2*6)
- 10 years agoHelpfull: Yes(1) No(1)
- xyz value of new term (121 , 11 , 726)
- 9 years agoHelpfull: Yes(0) No(1)
- 7*7=49, 7*2=14*7=98
4*4=16,4*3=12*4=48
3*3=9,3*4=12*3=36
5*5=25,5*5=25*5=125 - 9 years agoHelpfull: Yes(0) No(1)
- vivek can u pls explain me how u have got that ans....
- 9 years agoHelpfull: Yes(0) No(0)
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