Question

Consider the following table:

Day	Temperature (in Celsius)
Monday	40
Tuesday	43
Wednesday	42
Thursday	45
Friday	35

On what day is the day is the temperature 2 degrees higher than the average for the week?

• A.
  Tuesday
• B.
  Wednesday
• C.
  Thursday
• D.
  Friday

Answer 1

The correct option is A

Tuesday
We know,

$Average=\frac{Sumofallobservations}{Totalnumberofobservations}$

Here,
Sum of all observations = 40 + 43 + 42 + 45 + 35 = 205
Number of observations = 5

$\therefore$
Average = $\frac{205}{5}=41$

We need the day on which the temperature was 2 degrees more than 41
$\Rightarrow$ 41 + 2 = 43 Degrees

It can be seen from the table that on Tuesday, the temperature is 43 Degrees.

Hence Tuesday is the required answer