Mixture word problems

The question

What is the price per kg of the blend?

A store blends 2 kg of milk chocolate at $36 a kg with 4 kg of dark chocolate at $54 a kg.
2 × 36 + 4 × 54 = 288
2 × 36 + 4 × 54 = 288
288 ÷ 6 = $48
asked:What is the price per kg of the blend?
$48
  1. Read it through. Two different rates are mixed. You cannot just average them — the bigger amount counts for more.
  2. Multiply each amount by its rate and add: 2 × 36 + 4 × 54 = 288.
  3. Now divide that total by how much there is altogether: 288 ÷ 6 = $48.
  4. Answer the question that was asked — "What is the price per kg of the blend?" — $48.

How it works.

  1. 01

    Read it through. Two different rates are mixed. You cannot just average them — the bigger amount counts for more.

  2. 02

    Multiply each amount by its rate and add: 2 × 36 + 4 × 54 = 288.

  3. 03

    Now divide that total by how much there is altogether: 288 ÷ 6 = $48.

  4. 04

    Answer the question that was asked — "What is the price per kg of the blend?" — $48.