In an operating system, which mode allows unrestricted

Find the wrong number in given number series.

1960, 1943, 1930, 1915, 1904, 1895

180000, 7200, 360, 36, 2.4, 0.48

33       34     37     42      48      58

54     54      108     39     144     28.8

1677, 1661, 1625, 1561, 1461, 1337.

124, 186, 375, 930, 2790, 9765

Find the wrong number in the given number series.

20, 33, 50, 69, 93, 121

Find the wrong number in the given number series.

934, 885, 949, 868, 968, 849 

- 80, - 44, - 4, 88, 216, 380

In each of the following number series, one term is wrong. Find the wrong term.

4, 7, 12, 21, 28, 39, 52