139, 142, 133, 160, 79, ?

The heights (in cm) of 20 boys of Class VI are : 140, 138, 139, 140, 140, 147, 139, 139, 139, 139, 140, 147, 138, 140, 139, 140, 147, 147, 138, 139. Which height has the maximum frequency and the minimum frequency in the given data ?

Given below are the heights (in cm) of 11 boys of a class : 149, 142, 154, 146, 143, 152, 148, 132, 140, 139, 128 Arrange the above data in an ascending order and find

In the following question, select the missing number from the given series. 144, 139, 133, 128, ?, 117, 111

Given below are are the heights (in cm) of 11 boys of a class: 146, 143, 148, 132, 128, 139, 140, 152, 154, 142, 149. the range of the given data is

7 : 133 :: 9 : ?

4, 9, 19, 39, 79, 160, 319 (a) 319 (b) 160 (c) 79 (d) 39