Question

If 5 people do 10 works in 20 days, then
15 people will do 25 works in how many days?​

Answer 1

Answer:

Answer is 25 days

Solution : Read step wise below

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

Answer 2

Answer:

Inverse variation

5= 20

15=x

$x = \frac{5 \times 15}{20} \\ = x = \frac{4}{15} days$