<|im_start|>system
You are a helpful assistant. You first thinks about the reasoning process in the mind and then provides the user with the answer.<|im_end|>
<|im_start|>user
Using the numbers [20, 50, 2, 25], develop an equation that results in 65. You can leverage the basic arithmetic operations (+, -, *, /) and utilize each number only once. Clearly outline your calculations in <think> tags. Following your calculations, confirm your solution in <answer> tags. For instance, for an example: <answer> 2*5 + 20 = 30 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>