Answer:
The answer is Choice D
Step-by-step explanation
The median is the middle value in the given set of data.
If the data is even, then there will be two middle numbers, then the median is the average of these two middle numbers.
Thus, from the data, it is obvious that the number of data in the given set is 13.
Hence, the middle number is 23.
Therefore, the median of the data is 23.
Answer:
95
Step-by-step explanation:
Required Average
=
80
Let the required grade be
x
.
Average
=
Sum of
n
numbers
n
So
80
=
76
+
84
+
65
+
x
4
320
=
225
+
x
x
=
320
−
225
x
=
95
Therefore, the required grade is
95
.
The painting's original price was $3,500.
Step-by-step explanation:
Step 1:
The price now is $500 lesser than 3 times the original price. So
The current selling price = (3 × original price) - $500.
If the current selling price is y and the original price is x, then

Step 2:
For this question, we have
. Substituting this in the equation, we get

So the original price of the classic painting was $3,500.