Last summer, 150 students attended the Apollo Math Camp, of whom 96 were girls and 54 were boys. Also, 68 were 7th graders and 82 were 8th graders. How many 8th-grade boys attended the camp if 40 of the girls were 7th graders?

Answer 1

Girls --> 96
Boys --> 54
7th grade --> 68
8th grade --> 82

7th grade girls --> 40

8th grade girls --> (Total girls) - (7th grade girls)
= 96 - 40
= 56

8th grade boys --> (Total 8th graders) - (8th grade girls)
= 82 - 56
= 26