Was the average (arithmetic mean) of the temperature at noon in degrees celsius in town a during the first 5 days of last month at least 28 degrees celsius?
(1) the sum of the temperatures at noon in town a during the first 4 days was 116 degrees celsius.
(2) the average of the temperatures at noon in town a during the second, third, fourth, and fifth days was 30 degrees celsius

1. Yes

2. No

Step-by-step explanation:

You can have a case such as 26,30,30,30,30 and another case :  of 4,40,40,32,8 satisfying the 2 statements at the same time but in the 2nd case, the average that is less than 28.

From the given statements combined together, to get e-a=4. So once you get this information, you can have a big range of values that may or may not have average >28.

b. astronomers

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