Answer: A
Step-by-step explanation:
The ratio is simply 2:5
You are comparing the two times
If there is 23 classrooms and each has 10 then you would have to times 23 by 10 - 23x10=230
This question belongs to greatest common factor.
49 = 7*7
56 = 7*8
So Greatest common factor = 7
Hence Susan can arrange 7 mugs on one shelf.
For 49 blue mugs, Susan can arrange 7 mugs in 7 shelves.
For 56 red mugs, Susan can arrange 7 mugs on 8 shelves.
Hence, 7 shelves are needed for BLUE mugs and 8 shelves are needed for RED mugs.
