0.4 and 2/5 both do.
50 percent of 80 equals 40.
80 percent of 40 questions equals 32 questions.
40 percent and no other percentage.
4 percent of 40 equals 1.6.
40% + 30% = 70%
2.6667
40% = 0.4 = 40/100
16% x 40%: = 0.16 x 40% = 6.4% or 0.064
70
1.1%
20
40%