Question

Amy and Roger both wash windows at a large downtown building. Amy can wash 25 windows in 4 hours. Roger can wash 32 windows in 6 hours. How many windows can they wash together in 12 hours? [Type your answer as a number.]

Answer 1

Answer:

139

Step-by-step explanation:

so amy can wash 25 windows in 4 hours

25/4

so amy can wash 6.25 windows per hour

and

6.25×12

75 windows in 12 hours

AND

roger can was 32 windows in 6 hours

32/6

so roger can wash 5.3 windows per hour

and

5.3×12

63.6 of 64 windows in 12 hours

so both can was 75+64

139 windows in 12 hours

Answer 2

Answer:

300. Because 25 + 32 × 12 is 684