0
$\begingroup$

I came across the following question

The average of four numbers is 36. Which is greater Sum of same four numbers or $140$

Now the answer states (a- The sum of same four numbers). How did they determine the minimum and the maximum value of the numbers from the average equation ?

$\frac{a+b+c+d}{4} = 36$ or $ a+b+c+d = 144 $

  • 1
    In this case same is unnecessary.2012-08-02

1 Answers 1

1

The minimum and the maximum aren't needed to find which is higher. The "sum" refers to a+b+c+d. You don't need to worry about those individual elements, but just that expression as a whole. You already showed how a+b+c+d is 144, which is greater than 140, therefore the sum of the four numbers is greater.

  • 0
    I think "same four numbers" referred to the four numbers in "average of four numbers", I don't think it means that the numbers are all the same.2012-08-02