Question

It takes 60 days for 10 machines to dig a hole. assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?

Answer 1

Answer:

5 days

Step-by-step explanation:

60 = 10

30 = ?

cross multliply

30 × 10

------------

60

= 5 days for 30 machines

Answer 2

Answer:20 minutes

Step-by-step explaination:

no. of machines      total time

      60                              10

      30                               x

now we will do multiplication

6o*10=30*x

600=30x

600/30=x

20=x