Sentence 1: Then, each boy was taken aside and asked how he would divide up rewards among individual boys from your group and the other group.

Sentence 2: Only boys from one of the groups were asked how they would distribute the rewads.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: And if official productivity statistics understate the real rate of progress by 1 percent, official price statistics also overstate inflation by exactly the same amount.

Sentence 2: And if official productivity statisticts understate the real rate of progress by 1 percent, official price statistics also understate inflation by exactly the same amount.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: If only Poirot had been accessible, I could have asked his advice.

Sentence 2: I was a little miffed that he hadn't told me his plans.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell