7 98 644 3145 12596 37797

Find the wrong number in the given number series.

60, 120, 90, 180, 145, 270

28, 84, 42, 126, 68, 189

Find the wrong number in the given number series.

4, 8, 24, 84, 480, 2880

8     10     36       216      2592     62208

6, 22, 76, 314, 1580, 9600

Find the wrong number in given number series.

1687, 1666, 1618, 1549, 1457, 1342.

Find the wrong number in the given number series.

1000, 500, 250, 120, 62.5

99  124   160   209   273   355   454

164, 160, 172, 136, 188, 128

3         6         18         149         602         15057