Answer:
2 Hours
Step-by-step explanation:
Required man hours to complete the full job = 12 *15
=180 Man hours
Required man hours to complete the 2/5 of the job = 180/5
= 36 Man hours
if 18 peoples are working,
required hours to complete the 2/5 of the job = 36 /18
= 2 hours
Answer:
x3 would be the answer. the next 3 numbers would be 486, 1458, and 4374
You need to make a proportion
beats 28 x
seconds 4 30
cross multiply and divide
(28) (30) = 4x
840 = 4x
210 = x
Answer:
5?
Step-by-step explanation:
I think you would count the middle point. But i don't completely know...