I am pretty sure it would be 230.4 because 192 multiplied by 1.20 (20 percent increase) is 230.4.
If the car travels x miles per hour, then you find out how many hours are in 90 minutes, which is 1.5, so your answer is 1.5x miles.
I hope this helps! Let me know if you would like more explanation :)
Answer:
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Step-by-step explanation: