9 15 24 ? 51 69 90

Find the wrong number in the series. 6, 9, 15, 22, 51, 99

find the number which will replace the '? in the given sequence: 1 , 2, 3, 7, 15, 24,51, 67 ?

Find the wrong term 9, 15, 27, 51, 101, 195

1 2 4 9 23 69 186

Incomes of A, B and C are in the ratio 7:9:12 and their respective expenditures are in the ratio 8:9:5.If A saves 1/4 of his income then the ratio of their saving sis 56 : 99 : 69 b. 15 : 28 : 27 c. 33 : 19 : 23 d. 56 : 69 : 99

Mode of the data 51, 14, 71, 15, 91, 2, 51, 19, 41, 51, 18, 15, 51 is

9 13 21 37 69 ? 261

6 7 9 13 26 37 69

a. 15 b. -15 c. 0 d. 51