Buying some tech gear

This task is about including and excluding GST.

 

tech-gear-headphones.png         tech-gear-phone.png

Rachel wants to buy some tech gear. She needs to know whether the GST is included or excluded.

Question 1Change answer

a)  Rachel likes pair of headphones that is priced at $420 excluding GST of 15%. 
     How much is the GST on these headphones? 
     $

Question 1Change answer

b)  She then sees another pair of headphones priced at $380 excluding GST of 15%. 
     What is the total price (including GST) she would pay for these headphones? 
     $

Question 1Change answer

c)  Rachel also looks at a new phone that costs $920 including GST of 15%. 
     How much GST has been included in the total price of $920? 
     $

Question 1Change answer

d)  Rachel then sees another phone that costs $1012 including GST of 15%. 
     What was the price of the phone before GST was added? 
     $