1. 6 , 8 , 12 , 42 , 160 , ?
   820
   810
   840
   850
   None of these
   Option B
   6*1+2=8
   8*2-4=12
   12*3+6=42

    

2. 6 , 5 , 8 , ? , 90 , 449
   25
   30
   32
   23
   None of these
   Option D
   6*1-1=5
   5*2-2=8

    

3. 3 , 4 , 9 , 23 , ? , 202.5
   60
   64.5
   67.5
   65
   None of these
   Option B
   3*1+1=4
   4*1.5+3=9
   9*2+5=23

    

4. 3 , 3 , 13 , 37 , 105 , ?
   225
   275
   255
   245
   250
   Option A
   3+1^3 – 1= 3
   3+2^3 +2 =13
   13+3^3 – 3 =37

    

5. 37 , 38 , 58 , ? , 293.5
   120
   117
   115
   125
   None of these
   Option B
   37*1+1=38
   38*3/2+1=58

    

6. 8 , 9 , 11 , 19 , 67 , ?
   451
   455
   460
   350
   355
   Option A
   8*1+1=9
   9+(1*2)=11
   11+(2*4)=19
   19+(8*6)=67

    

7. 1650 , ? , 50 , 9.5 , 1.17 , -0.415
   250
   270
   260
   245
   None of these
   Option B
   

    

8. 3 , 14 , 39 , 103 , 270 , ?
   707
   750
   450
   705
   None of these
   Option A
   3+11=14
   14+(11+14)=39
   39+(25+39)=103

    

9. 14 , 18 , ? , 458 , 4458
   62
   50
   56
   55
   58
   Option E
   

    

10. 15 , 80 , 255 , ? , 1295
    630
    624
    520
    555
    585
    Option B
    2^4=16-1=15
    3^4=81-1=80

     

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