Question

In an examination every student took history or geography or both of 500 candidates 60% took history whiles 72% took geography. How many students took both subjects

Answer 1

80 students

Explanation:

Answer 2

80

Explanation:

60% of 500 = 300

72% of 500 = 360

40% of 500 = 200

28% of 500 = 140

300+360 = 660

660 - 2x = 500

660 - 500 = 2x

160 = 2x

2x = 160

x = 80