Question

399:57 236:59 475:95 609*27-4320:60

Answer 1

399:57=7
236:59=4
475:95=5
609•27=16443
-4320:50=-86.4

Answer 2

To solve the expression, follow these steps:

1. Calculate the sum of 399:57, 236:59, 475:95: Convert each of the time formats to minutes (1 hour = 60 minutes).

   399:57 = 399 hours * 60 minutes + 57 minutes = 23997 minutes 236:59 = 236 hours * 60 minutes + 59 minutes = 14219 minutes 475:95 = 475 hours * 60 minutes + 95 minutes = 28595 minutes

   Sum = 23997 + 14219 + 28595 = 66711 minutes

2. Calculate 609 * 27:

   609 * 27 = 16443

3. Calculate 4320:60:

   Convert 4320:60 to minutes by adding 60 minutes to 4320 minutes: 4320 + 60 = 4380 minutes

4. Finally, subtract the result from step 3 from the result in step 2:

   16443 - 4380 = 12063

So the final answer is 12063.