`25639-5252-3232=?`

525.25 + 52.52+5.2=?

Draw a histogram to represent the following {:("Class interval ", 0-8,8-16,16-24,24-32,32-40),(" Frequency "," "6, " "9, " "12 , " "10, " "5):}

{:("Class Interval",0-4,4-8,8-12,12-14,14-16,16-20,20-24,24-26,26-32,32-34,34-40,40-44,44-48),("Frequency"," "2," "4," "7," "5," "8," "3" "," "2," "1," "13," "5," "3," "3," "9):}

525.25 + 52.52 + 5.2 = ?

A 4 -digit number is formed by repeating a 2- digit number such as 2525,3232 etc.Any number of this form is exactly divisible by 7 (b) 11 (c) 13 (d) Smallest 3-digit prime number

The mode of the following frequency distribution of 165 observations in 34.5 {:(" Class ",5-14,14-23,23-32,32-41,41-50,50-59,59-68),(" Frequency "," "5," "11," "a," "53," "b," "16," "10):} Find the values of a and b .

5566-7788+9988=?+4444(a)3223 (b) 3232 (c) 3322 (d) 333 (e) None of these