Calculating R1 and R2 for Opto-Triac Output Circuit

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Here's the diagram with calculations:

LED.PNG
 
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As suspected, it's a different arrangement.
 
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R1 = 150 Ω
R2 = 850 Ω

This question was easier than the example question.

It is important to read and understand the diagram before throwing things onto the page in panic.
 
Michael Neo said:
What do you mean by "... you'll choose one of the preferred values"?
If you go into a city electronics store and ask for an 850 ohm resistor, the salesperson will say, "Sorry, but no one stocks that value."
 
Thank you for the excellent advice and support, NascentOxygen.