Choose the correctly spelt word.

Select the wrong term in the series.

10, 19, 23, 52, 61, 133, 149

5, 15, 30, 135, 405, 1215, 3645

3. 8, 15, 24, 34, 48, 63

In the following question, select the wrong number from the given alternatives.

48, 50, 52, 57, 59, 68, 75

Find the wrong number in the following number series:

2500, 1000, 400, 160, 60

Select the wrong term in the series.

44, 47, 41, 50, 38, 53, 40

Find the wrong number in the series given below.

5, 16, 50, 157, 463, 1394

8, 20, 48, 108, 232, 482

Identify the letter-cluster that does not belong to the following series.

RBK, TYM, VVO, XSP, ZPS, BMU

Select the number from among the given options that is wrong in the following series.

22, 30, 46, 78, 146, 270