Question

Inverse Proportion
1. If 8 soldiers can build a bridge in 5 hour, how many soldiers are needed to build the same bridge in 4 hours?

Answer 1

10

Step-by-step explanation:

8:x

5:4

since it is inversely proportional,

8:x :: 4:5

x = 5×8/4

x = 40/4

x = 10