Ques 1.
54, 59, 63, 75, 99, 147
1. 54
2. 59
3. 75
4. 147
5. 99
2; The series is :
54 + 3 = 57 ≠ 59
57 + 6 = 63
63 + 12 = 75
75 + 24 = 99
99 + 48 = 147
Ques 2.
3, 24, 147, 1029, 7203, 50421
1. 24
2. 1029
3. 3
4. 7203
5. 147
1; The series is
3 x 7 = 21 ≠ 24
21 x 7 = 147
147 x 7 = 1029
1029 x 7 = 7203
7203 x 7 = 50,421
Ques 3.
9, 7, 23, 12.5, 29, 15
1. 12.5
2. 15
3. 23
4. 29
5. 7
3; The series is
(9+5) x 1/2 = 7
(7+4) x 2 = 22 ≠ 23
(22+3) x 1/2 = 12.5
(12.5 + 2 ) x 2 = 29
(29+1) x 1/2 = 15
Ques 4.
11, 13, 16, 21, 30, 41
1. 11
2. 16
3. 21
4. 42
5. 30
5; The series is
11 + 2 = 13
13 + 3 = 16
16 + 5 = 21
21 + 8 = 29 ≠ 30
30 + 12 = 42
Ques 5.
7, 28, 24, 56, 28, 112
1. 7
2. 56
3. 28
4. 24
5. 112
4; The series is :
7 x 4 = 28
28 ÷ 2 = 14 ≠ 24
14 x 4 = 56
56 ÷ 2 = 28
28 x 4 = 112
Direction (1-5): What value should come in place or question mark (?) in the following number series?
Ques 1.
2548, 1584, ?, 448, 180, 48
1. 1284
2. 1185
3. 900
4. 1294
5. 848
3; The series is:
14³ - 14² = 2548, 12³ - 12² = 1584, 10³ - 10² = 900
8³ - 8² = 448, 6³ = 180, 4³ - 4² = 48
Ques 2.
29, 173, 719, ?, 4391, 4415
1. 2183
2. 2483
3. 2238
4. 2583
5. 2538
1; The series is :
29 x 5 + (29-1) = 173, 173 x 4 + (29-2) = 719,
719 x 3 + (29-3) = 2183 , 2183 x 2 + (29-4) = 4391,
4391 x 1 + (29-5) = 4415
Ques 3.
85, 87, 47.5, 148.5, ?, 235.625
1. 69.25
2. 40.125
3. 60.125
4. 45.125
5. 75.25
4; The series is :
85 x 1 + 2 = 87, 87 ÷ 2 + 4 = 47.5 , 47.5 x 3 + 6 = 148.5,
148.5 ÷ 4+8 = 45.125 , 45.125 x 5 + 10 = 235.625
Ques 4.
18, 450, 434, 3906, ?, 3902
1. 3904
2. 3902
3. 3906
4. 3908
5. 3907
2; The series is
18 x 5² = 450 , 450 - 4² = 434, 434 x 3² = 3906
3906 - 2² = 3902 , 3902 x 1² = 3902
2; The series is :Ques 5.
5832, 4096, 2744, 1725, ?
1. 729
2. 1000
3. 512
4. 1331
5. 1224
18³ = 5832, 16³ = 4096, 14³ = 2744, 12³ = 1728,
10³ = 1000
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