Are `30 ,\ 40 ,\ 45 ,\ 60` in proportion?

Are 30, 40, 45 and 60 in proportion?

Are 40, 30, 60, 45 in proportion?

Are the ratios 25 \ g:30 \ g and 40 \ g:48 \ g in proportion?

Are 5,10,30 and 60 in proportion ?

Are 5, 10, 20 and 30 in proportion ?

By taking classes 30 - 40, 40 - 50, 50 - 60,.. ., construct a frequency table for the following data: " 65 34 74 49 52 35" " 71 55 61 40 56 38 " " 52 56 52 33 60 35 " " 49 37 53 50 44 30" " 62 50 47 45 47 50 " " 63 61 54 58 47 64 " " 37 38 44 42 47 55 " " 70 33 75 49 47 30" " 60 69"

Check whether the following numbers are in proportion or not : 30, 40, 45, 60

Check whether area in proportion. 0.02 kg to 10 g and 40 litres to 30 litres

The following table gives the number of participants in a yoga camp: [("Age in years", 20-30, 30-40, 40-50, 50-60, 60-70),("No. of Participants", 8,40,58,90,83)] . Find the modal age of the participants.

Draw histograms for the following frequency distributions : {:("Class interval ", 0-10, 10-20, 20-30, 30-40, 40-50, 50-60),("Frequency "," "12, " " 20, " " 26, " " 18, " " 10, " " 6):}