IBPS - Maths Series 1
In each of these questions a number series is given. Below the series one number is given followed by (a), (b), (c), (d) and (e). You have to complete this series following the same logic as in the original series and answer the question that follows.
5 9 25 91 414 2282.5
3 (a) (b) (c) (d) (e)
What will come in place of (c) ?
1) 63.25
2) 63.75
3) 64.25
4) 64.75
5) None Of these
Correct Ans:
4
Solutions :
Original number series
5 x 1.5 + 1.5 = 7.5 + 1.5 = 9
9 x 2.5 + 2.5 = 22.5 + 2.5 = 25
25x3.5+3.5 = 87.5+3.5 = 91
91 x 4.5 + 4.5 = 409.5 + 4.5 = 414
Like this,
(a) Þ 3x1.5+ 1.5 = 4.5+ 1.5 = 6
(b) Þ 6 x 2.5 + 2.5 = 15 + 2.5 = 17.5
(c) Þ 17.5 x 3.5 + 3.5 = 61.25 + 3.5 = 64.75
Q.2)
In each of these questions a number series is given. Below the series one number is given followed by (a), (b), (c), (d) and (e). You have to complete this series following the same logic as in the original series and answer the question that follows.
15 9 8 12 36 170
19 (a) (b) (c) (d) (e)
What will come in place of (b) ?
1) 18
2) 16
3) 22
4) 24
5) None Of these
Correct Ans:
2
Solutions:
Original number series
15x1-1x 6= 15-6 = 9
9x2-2x5 = 18-10=8
8x3-3x4 = 24-12 = 12
12x4-4x3 = 48-12 = 36
36x5-5x2 = 180-10=170
Like this,
(a) 19x 1-1x6 = 19-6=13
(b) 13 x2-2x5 = 26-10=16
Q.3)
In each of these questions a number series is given. Below the series one number is given followed by (a), (b), (c), (d) and (e). You have to complete this series following the same logic as in the original series and answer the question that follows.
7 6 10 27 104 515
9 (a) (b) (c) (d) (e)
What will come in place of (d) ?
1) 152
2) 156
3) 108
4) 112
5) None Of these
Correct Ans:
1
Solutions :-
Original number series
7x1-1=6
6x2-2 = 10
10 x 3- 3 = 27
27x4-4 = 104
104x5-5=515
Like this,
(a) Þ 9x1-1 = 8
(b) Þ 8x 2-2 = 14
(c) Þ 14x 3-3 = 39
(d) Þ 39x4-4 = 152
Q.4)
In each of these questions a number series is given. Below the series one number is given followed by (a), (b), (c), (d) and (e). You have to complete this series following the same logic as in the original series and answer the question that follows.
6 16 57 244 1245 7506
4 (a) (b) (c) (d) (e)
What will come in place of (d) ?
1) 985
2) 980
3) 1004
4) 1015
5) None Of these
Correct Ans:
5
Solutions :
Original number series
6x2+22 = 12 + 4 = 16
16 x 3 + 32 = 48 + 9 = 57
57x4+ (4)2 = 228+ 16=244
244 x 5 + (5)2 = 1220 + 25 = 1245
Like this,
(a) 4 x 2 + 22 = 8 + 4 = 12
(b) 12x3+ 32 = 36+ 9 = 45
(c) 45 x 4 + 42 = 180 + 16 = 196
(d) 196x5+ 52 = 980 + 25 = 1005
Q.5)
In each of these questions a number series is given. Below the series one number is given followed by (a), (b), (c), (d) and (e). You have to complete this series following the same logic as in the original series and answer the question that follows.
8 9 20 63 256 1285
5 (a) (b) (c) (d) (e)
What will come in place of (e) ?
1) 945
2) 895
3) 925
4) 845
5) None Of these
Correct Ans:
3
Solutions :
Original number series
8x1+1=9
9 x 2 + 2 = 20
20 x 3 + 3 = 63
63 x 4 + 4 = 256
256x5+ 5 = 1285
Like this,
(a) 5x1+1 = 6
(b) 6 x 2 + 2 = 14
(c) 14 x 3 + 3 = 45
(d) 45 x 4+ 4 = 184
(e) 184x5 + 5=925
