Paul is four times as old as his brother. in six years time paul will be eighteen. how old will his brother be in six years time?

Paul is 12 years old. If he is four times as old as his brother that means his brother is 3. Paul will be 18 in six years time, meaning his brother will be 9 in six years time.

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.