First, we need to find how many pupils are in Year 9:
20% of 1600 pupils = 0.20 x 1600 = 320 pupils in Year 9
Next, we need to find how many of the Year 9 pupils are boys:
35% of 320 pupils = 0.35 x 320 = 112 Year 9 boys
Therefore, there are 112 Year 9 boys in the school.
There are 1600 pupils in a school.
20% of the pupils are in Year 9.
35% of the Year 9 pupils are boys.
How many Year 9 boys are there in the school?
1 answer
1 answer