Question

Dan, Harry and Regan sell cars.

Dan sells x cars.
Harry sells 5 more cars than Dan.
Regan sells twice as many cars as Dan.
Write an expression, in terms of x, for the mean number of cars Dan, Harry and Regan sell.

Answer 1

`Mean = (4x + 5)/(3)`

Explanation:

Given:

Dan sold = x

Harry sold 5 more than Dan, that is = x + 5

Regan sold twice as Dan = 2x

`Mean = ( Total \ cars \ sold)/(number\ of \ them \ sold \ it )\\\\Mean = (x + ( x+ 5) +2x )/(3) = (4x + 5)/(3)`

Answer 2

4X+5

Explanation:

Dan : X

Harry: X+5

Regan: 2X

X+X+5+2X