9:20 is to 15:x
9 : 20 = 15 : x
9 × 15 = 20 × x
135 = 20x
[tex] \frac{135}{20} = \frac{20x}{20} [/tex]
6.75 = x
15 men will finish the same piece of work in 6.75 days or 6 days plus *18 hours or 6 to 7 days
*.75×24hours pr day=18hrs
** 9×15=20×(6.75)
135=135
tama ba? sabihan ako pag mali ha.
