Lizzy: After receiving the $2000 stimulus check, Mr. Eithan decided to share the amount with his family. He gave 2/5 of the amount to his wife, 2/5 of the remaining amount to his first son, 40% of the remaining amount to his second son, and kept the remaining in their family savings account. Calculate the total amount he kept in the family's savings account..
Me: Hmmm, let me think. I think this is the detailed solution:
The total amount of money Mr. Eithan gave to his wife is 2 / 5 * 2000 = $800. After giving his wife $800, he remained with $2000 - $800 = $1200. He gave his first son 2 / 5 of the remaining amount which is 2 / 5 * $1200 = $480. The total amount remaining after he gave his first 2 / 5 of the amount is $1200 - $480 = $720. He then gave his second son 40 / 100 * 720 = $288 of the money. After giving his second son $288, the amount of money remaining that he saved in the family's saving account is $720 - $288 = $432. Final answer: 432.