Question

what does this mean ?

Answer 1

Answer:

in first row:

in second cell 1 in every 10

in third cell 5 in every 20

in second row:

first cell 7/10

third cell 5/20

in third row:

first cell 0.7

second cell 0.1

third cell 0.25

in fourth row:

first cell 70%

second cell 10%