Subtract 9 from 56 to find how many like.
47 students are split in ratio 5 to 4, so there are 9 parts all together,but 7 students like both sports.Let's take x as number of stidents in one part.
9x-7=47 (we subtract 7 because we count them twice)
9x=54
x=6
football: 6x5=30
cricket: 6x4=24
to draw a venn diagram, draw two overlapping circles and put 7 in the middle.