By adding together Monday and Tuesday, Saah has 20+18= <<20+18=38>>38 pencils

On Wednesday, she buys 3 * 18= <<3*18=54>>54 pencils

All together, Sarah has 38+54= <<38+54=92>>92 pencils

# Answer

92
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Sarah buys 20 pencils on Monday. Then she buys 18 more pencils on Tuesday. On Wednesday she buys triple the number of pencils she did on Tuesday. How many pencils does she have?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
92
Sarah buys 20 pencils on Monday. Then she buys 18 more pencils on Tuesday. On Wednesday she buys triple the number of pencils she did on Tuesday. How many pencils does she have?
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