1. which of the following countries are top three largest shareholders in Asian Infrastructure Investment Bank (AIIB) ?

2. Assume that the equipments maintenance is is done on consecutive instead of nonconsecutive days but that all other scheduling policies are unchanged . For how many of the six days can it be determined both whether the pool is cleaned and whether the equipments maintenance is done ?

3. If female members use the facility on a day that the pool is cleaned , which of the following must be true?

4. According to the schedule, the equipments maintenance is done on either

5. According to the schedule , which of the following could be true?