810+189-715= 284. the answer is 284
Answer:
228 grams
Step-by-step explanation:
500/2=250
7*4=28
300-250=50
250-50-+28=228
7 Cups x 5 Hours = 35 Cups sold
89 Cups + 35 = 124 Cups
They stared with: 124 Cups
7 Cups X 15 Hours = 105 Cups
124 - 105 = 19
19 Cups will be left after 15 Hours.