32
given 7 men make 20 bicycles in 5days, then number made per day by 7 men
= [tex]\frac{20}{5}[/tex] = 4 bicycles per day by 7 men
using direct proportion
7 men → 4
4 men → 4 × [tex]\frac{4}{7}[/tex] = [tex]\frac{16}{7}[/tex] bicycles per day
in 14 days = 14 × [tex]\frac{16}{7}[/tex] = 32
