Question

A student answered 40 problems on a test correctly and received a grade of 80%. How many problems were on the test, if all the problems

were worth the same number of points?

Answer 1

50 problems

Explanation:

40÷2 =20 = 40% 20÷2 =10 = 20%

if 10 =20% then 10 × 5 = 50 or 80%

(overthinking)

Answer 2

Explanation:

80x/100 = 40

80x = 4000

x= 50 problems