Suppose p and q be two real functions continuous at a

What will come in place of the question mark (?) in the following series?

121, 110, 97, ?, 61, 38

7 29 61 ? 211 349

What will come in place of the question mark (?) in the following series?


28, 45, 75, 118, 174, ?

What will come in place of the question mark (?) in the following series?

18, 25, 36, 49, 66, ?

165        155      135      ?      65       15

What will come in place of the question mark (?) in the following series?

146, 122, ? , 74, 50, 26

52      83      114      ?      176       207

10, 20, 60, 300, ?, 23100

38, 41, 50, ?, 158, 401 

What will come in place of the question mark (?) in the following series?

10, 410, ?, 710, 760, 785