11, 18, 32, 60 : 17, 30 ,56, 108 :: 13, 24, 46, 90 :?​ Find the missing term

Find the missing term ? 7:56::9:?

13, 24, 46, 90, 178, ….

Find the missing term ? 42:56::72:?

find the missing term? 6,9,12,15,18,?

Find the missing value in 8:24::?:32

If the n observations are 24, 17, 13, 24, 26, 20, 26, 30, 8, 41, 24, then match the following

Find out missing term? 18 : 30 :: 36 : ?

Find the missing term ? 6, 11, 21, 36, 56, ?

Form a grouped frequency distribution from the following data by inclusive method taking 4 as the class size of class intervals. 31, 23, 19, 29, 22, 20, 16, 10, 13, 34, 38, 33, 28, 21, 15, 18, 36, 24, 18, 15, 12, 30, 27, 23, 20, 17, 14, 32, 26, 25, 18, 29, 24, 19, 16, 11, 22, 15, 17,10

Find the missing term ? 5, 11, 23, 47, 95, ?