To celebrate Halloween the village play group is holding a Halloween party.
At the Halloween party 60% of the children are girls.
20% of the girls have their faces painted.
21.6% of all the children at the party have their faces painted.
Can you work out the percentage of boys that have their faces painted at the party.
Answer:
Let:
T = total children at party
B = % boys with their face painted
20% x 60% T + B% x 40% T = 21.6% T
0.12 + 0.4 B = 0.216
Therefore:
B = (0.216 – 0.12)/0.4 = 0.24
Therefore B = 24%