Two months ago, Wilson had a total of $150 in his bank account. Then last month, he deposited $17. A few days after, he made a withdrawal. This month, he deposited $21 so he has $16 more than what is in his account two months ago. How much did Wilson withdraw last month?
Wilson had $150 + $17= $<<150+17=167>>167 two months ago before making a withdrawal.
His money in his account now is $150 + $16 = $<<150+16=166>>166.
Since he deposited $21 this month, this means there was $166 - $21 = $145 last month after making a withdrawal.
Therefore, Wilson withdrew $167 - $145 = $<<167-145=22>>22.
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