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