20 men do a quarter port of a job in eight days. if the world needs to be completed in the next four days how many men are needed to achieve the target?
Answers
Answer:
If 20 men finish 1/4 of a job in 8 days, it will take them 24 more days to do the job. Then, the question is how many men would it take to finish the job in 5 days?? So we have....
20 men*24 days = x men * 5 days
x = 20*24/5 = 96 men could finish the job in 5 days. But since we alreafy have 20 men, we need 76 additiomal men.....!!!!
Answer:
100
Step-by-step explanation:
20 men - 8 days - 1/4 work =
? men - 4 days - 3/4 work
Answer :
20 men - 8 days - 1/4 work =
20 men - 8*3 days - 1/4*3 work =
20 men - 24 days - 3/4 work =
20*2 men - 24/2 days - 3/4 work =
40 men - 12 days - 3/4 work =
40*3 men - 12/3 days - 3/4 work =
120 men - 4 days - 3/4 work =
There already are 20 men so,
120 - 20 = 100
So, more 100 men are needed to achieve the target.