If 5 people can finish a work in 20 days, how many people are needed to do the work in 10 days?
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Answers
Answered by
2
Step-by-step explanation:
Total work in units = 40 units ( i.e the LCM of 20,10 and 8)
Rate of work done by 10 people = total work / time taken
Rate of work by 10 people = 40units / 20 days = 2units/day
Rate of work by 1 person = 2 /10 = 1/5
Rate of work by 8 person = 8 × 1/5 = 8/5
Time taken by 8 person = total work / rate of work by 8 person
= 40 units / (8/5) units/day
25 days
Answered by
4
Answer:
10 people
Step-by-step explanation:
20 multiplied by 5= 100
so 100 is the days for 1 person
then 100 days divided by 10 days= 10 people
or
5 is the half of ten
10 is the half of 20
so if 5 people 20 days
then ten people 10 days
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