Sybil is planning a trip to Paris. She estimates that 1 euro is worth about 1.2 U.S. dollars. Her budget for the trip allows $150 per night for a hotel room. What is the maximum number of euros she should pay for a room?

150 dollars/1.2 = 125 euros for the room

To find out the maximum number of euros Sybil should pay for a hotel room, we need to divide her budget in U.S. dollars by the conversion rate from euros to U.S. dollars.

Let's calculate it step-by-step:

1. Sybil's budget for a hotel room per night is $150.
2. We need to convert U.S. dollars to euros using the given exchange rate. If 1 euro is worth about 1.2 U.S. dollars, then 1 U.S. dollar is worth about 1/1.2 euros.
3. Therefore, we can calculate the maximum number of euros Sybil should pay for a room using the following formula:
Maximum Euros = Budget in U.S. dollars / Conversion rate

Substituting the values:
Maximum Euros = $150 / (1/1.2)

Now, let's simplify the expression:
Maximum Euros = $150 * 1.2

Calculating:
Maximum Euros = $180

Therefore, the maximum number of euros Sybil should pay for a hotel room is 180 euros.