Quantitative Aptitude Quiz

What should come in place of the question mark (?) in the following number series?
1. 4, 24, 120, 480, 1440, 2880, ?
(1) 3600 
(2) 4800 
(3) 2880
(4) 5760 
(5) None of these



2. 11, 23, 48, 99, 202, 409, ?
(1) 818 
(2) 820 
(3) 824 
(4) 832 
(5) None of these



3. 11, 17, 23, 31, 41, 47, ?
(1) 51 
(2) 59 
(3) 61 
(4) 67 
(5) None of these



4. 11, 12, 12, 14, 28, 31, 93, 97, ?
(1) 101 
(2) 388 
(3) 404 
(4) 514 
(5) None of these



5. 5, 13, 25, 41, 61, 85, ?
(1) 123 
(2) 101 
(3) 113 
(4) 125 
(5) None of these



6. 441 ÷ 3 × √? = 10290
(1) 70 
(2) 80 
(3) 4900
(4) 6400 
(5) None of these



7. √? + 33 = √4096
(1)961 
(2) 31 
(3) 62 
(4) 979 
(5) None of these



8. 16 × 36 ÷ 15 + 11 = ?
(1) 43 
(2) 41.5 
(3) 47 
(4) 45.5 
(5) None of these

9. <!--[endif]-->(49)^0.2 ÷ (343)^0.1 x (2401)^0.2 = (7)^?

(1) 1.1 
(2) 0.5 
(3) 0.9 
(4) 0.7 
(5) None of these



10. 55% of 680 - ? = 286
(1) 83 
(2) 85 
(3) 87 
(4) 88 
(5) None of these
ANS : 4