24 men working at 8 hours perday can do a piece of work in 15 day. in how many days can 20 men working at 9 hours day can complete the same work?

16 days

Step-by-step explanation:

24 men works 8 hours a day to complete a work in 15 days. While 20 men works at 9 hours per day to complete the same work in x days. We can find the number of days it took the 20 men by using the expression below:

24 men * 8 hours/day * 15 days = 20 men * 9 hours/day * x days

Therefore it took 20 men working 9 hours/day, 16 days to complete the same work

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: