SBI PO 2015: Quant Quiz

Directions-(Q. 1 – 5) What will come in place of question mark (?) in the following number series ?

1.18, 96, 161, 213, 252, ?
(1) 264
(2) 278
(3) 265
(4) 291
(5) None of these

2. 7, 13, 24, 40, 61, ?
(1) 87
(2) 92
(3) 89
(4) 93
(5) None of these

3. 8, 12, 21,37,62,98 ?
(1) 98
(2) 238
(3) 240
(4) 206
(5) None of these

4. 3, 7, 19, 39, 67, ?
(1) 107
(2) 113
(3) 109
(4) 103
(5) None of these

5. 759, 423, 255, 171, 129, ?
(1) 118
(2) 107
(3) 98
(4) 92
(5) None of these

6. 18935, 3780, 750, 145, 25, ?
(1) 5
(2) 2
(3) 4
(4) 3
(5) None of these

7. 3, 10, 32, 111, ?, 2315, 13902
(1) 512
(2) 460
(3) 424
(4) 412
(5) None of these

8. 16, 24, ?,  210, 945, 5197.5, 33783.75 
(1) 36
(2) 40
(3) 60
(4) 58
(5) None of these

9. 16, 15, 21, ?, 77, 195.5, 588.5 
(1) 36.5
(2) 39
(3) 37.5
(4) 36
(5) None of these

10. 142,  871, 1383, 1726, 1942, 2067, ?
(1) 2283
(2) 2131
(3) 2134
(4) 2192
(5) None of these

ANSWERS
1. (2)
18+78=96
96+65=161
161+52=213
213+39=252
252+26=278

2. (1)
7+6=13
13+11=24
24+16=40
40+21=61
61+26=87

3. (5)
8+2^2  = 12
12+3^2 = 21
21 + 4^2 = 37
37 + 5^2 = 62
62 + 6^2 = 98
98 + 7^2 = 147

4. (4)
3 + 4 = 7
7 +12 = 19
19+20=39
39+28=67
67+36=103

5. (5)
759 – 336 = 423
423 – 168 = 255
255 – 84 = 171
171 – 42 = 129
129 – 21 = 108

6. (2)
18935 3780,  750,  145,  25,  (2)
-35/5 -30/5 -25/5 -20/5 -15/5

7. (2)
(3+7)*1=10, 
(10+6)*2=32
(32+5)*3=111
(111+4)*4=460
(460+3)*5=2315
(2315+2)*6=13902

8.  (3)
16 * 1.5 = 24, 
24 * 2.5 = 60
60 * 3.5 = 210
210 * 4.5 = 945
945 * 5.5 = 51975
51975 * 6.5 = 3378.75

9. (1)
16*0.5+7 = 15
15*1+6 = 21
21*1.5+5 = 36.5
36.5*2+4 = 77
77*2.5+3 = 195.5
195.5+3+2=588.5

10. (2)
142+729 = 871

871+512 = 1383
1383+343 = 1726
1726+216 = 1942
1942+125 = 2067
2067+64 = 2131

ANSWERS

1. (2)
18+78=96
96+65=161
161+52=213
213+39=252
252+26=278

2. (1)
7+6=13
13+11=24
24+16=40
40+21=61
61+26=87

3. (5)
8+2^2  = 12
12+3^2 = 21
21 + 4^2 = 37
37 + 5^2 = 62
62 + 6^2 = 98
98 + 7^2 = 147

4. (4)
3 + 4 = 7
7 +12 = 19
19+20=39
39+28=67
67+36=103

5. (5)
759 – 336 = 423
423 – 168 = 255
255 – 84 = 171
171 – 42 = 129
129 – 21 = 108

6. (2)
18935 3780,  750,  145,  25,  (2)
-35/5 -30/5 -25/5 -20/5 -15/5

7. (2)
(3+7)*1=10, 
(10+6)*2=32
(32+5)*3=111
(111+4)*4=460
(460+3)*5=2315
(2315+2)*6=13902

8.  (3)
16 * 1.5 = 24, 
24 * 2.5 = 60
60 * 3.5 = 210
210 * 4.5 = 945
945 * 5.5 = 51975
51975 * 6.5 = 3378.75

9. (1)
16*0.5+7 = 15
15*1+6 = 21
21*1.5+5 = 36.5
36.5*2+4 = 77
77*2.5+3 = 195.5
195.5+3+2=588.5

10. (2)
142+729 = 871

871+512 = 1383
1383+343 = 1726
1726+216 = 1942
1942+125 = 2067
2067+64 = 2131