## Fermat 2023 Part B - Question 11, CEMC UWaterloo

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#### Difficulty: 4

#### This problem is tagged with fermat, fermat23, highschool.

**(Fermat 2023, Part B, Question 11, CEMC - UWaterloo)**

At the start of this month, Mathilde and Salah each had $100$ coins. For Mathilde, this was $25\%$ more coins than she had at the start of last month. For Salah, this was $20\%$ fewer coins than he had at the start of last month. The total number of coins that they had at the start of last month was

$(A)$ $180$

$(B)$ $185$

$(C)$ $190$

$(D)$ $200$

$(E)$ $205$

*Answer Submission Note(s)*

Your answer should be a single capital letter, e.g. 'A'.

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