Student or Learner
'The number of wealthy households whose annual income exceed or exceeds 250,000 yuan, or about 36,000 US dollars living in urban areas, topped 1.6 million last year.'
And what is the rule? It's seems obvious but I can't work it out.
Thanks in advance
The rule: the verb agrees in person and number with its subject:
Ex: The number of wealthy households whose annual income (subject) exceeds (verb)250,000 yuan...
Person: 3rd person (income = it)
Number: singular income, plural incomes
Singular: income exceeds
Plural: incomes exceed