Directions ( Q. 1 to 5): In the following number series a wrong number is given. Find out the wrong number.
1. 150, 290, 560, 1120, 2140, 4230, 8400 (3)
(1) 2140
(2) 560
(3) 1120
(4) 4230
(5) 290
2. 10, 8, 13, 35, 135, 671, 4007 (2)
(1) 8
(2) 671
(3) 135
(4) 13
(5) 35
3. 80, 42, 24, 13.5, 8.75, 6.375, 5.1875 (3)
(1) 8.75
(2) 13.5
(3) 24
(4) 6.375
(5) 42
4. 125, 75, 45, 25, 16.2, 9.72, 5.832 (1)
(1) 25
(2) 45
(3) 9.72
(4) 16.2
(5) 75
5. 29, 37, 21, 43, 13, 53, 5 (5)
(1) 37
(2) 53
(3) 13
(4) 21
(5) 43
