Answers
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Note: For 2019 and 2020 the maximum amount that can be contributed to a Roth IRA is $6,000 if you're younger than age 50. Extra $1,000 per year is allowed if you are 50 or older bringing the total contribution to $7,000. But in the options given, no figure matches the answer obtained when calculations are done based on 2019 and 2020 rules.
Therefore it is assumed that the question is based on 2018 rules.
Maximum Roth IRA contribution limits for 2018 are $5,500 for those younger than 50 or $6,500 if you're 50 or older. Therefore Yumiko can contribute a maximum of 6500 as her age is greater than 50 and her AGI is less than $120,000 ( single filer).
Maximum contribution = 5500 + 1000 = 6500.
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