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Question:

A woman buys 23 pounds of potatoes. She gives 10% of them to a neighbor and 15% of them to her mother. How many pounds does she have left?

A 17.25 pounds
Explaination

First, calculate 10% of 23 pounds: $9918_w120_h15.png$ pounds
Then, calculate 15% of 23 pounds: $5440_w129_h15.png$
Then, calculate the total number of pounds the woman gave away: 2.3 + 3.45 = 5.75
Finally, calculate how many pounds she has left: 23 – 5.75 = 17.25