Step-by-step explanation:
Answer-
b) 1
Answer:
27/28
Step-by-step explanation:
Answer: 10 minutes
Step-by-step explanation:
1. Jonathan can type 20 documents in 40 minutes (20/40=1/2 per minute), Susan can type it in 30 minutes (20/30=2/3 per minute) and Jack can type it in 24 minutes (20/24=5/6 per minute), then you must add them to obtain the number of pages they wan write in 1 minute working together:
2. Then, the time will it take them type the same document of 20 pages is:
Answer:
Step-by-step explanation:
7.49 7.5% 7 49/50 yay i have to do more than 20 characters