Question

3 siblings, all 2 years apart receive pocket money in proportion to their age. If the average age of the children is 8, and their total pocket money per week is $12, how much would the eldest child receive in 4 weeks?

Answer 1

Answer:

The oldest sibling will recieve 10$

Step-by-step explanation:

$given \: \frac{x + x + 2 + x + 4}{3} = 8 \\ \\ = \frac{3x + 6}{3} = 8 \\ x + 2 = 8 \\ x = 8 - 2 \\ x = 6 \\ \\ ages \: are \: 6 \: 8 \: and \: 10$