Mathematics for IGCSE & O level - Percentages (Section 1 - No. 19)
If the ratio of boys to girls in a class is 2:3, what percentage of the class are girls?
33.33%
40%
60%
66.67%
Spiegazione
Girls are 3 parts out of 5 total parts (2+3). (3/5)*100 = 60%