यदि दाईं ओर को बाईं ओर माना जाए और बाईं ओर को दाईं ओर माना जाए, तो बाएं छोर से A का स्थान 18वां है, जो B के ठीक दाईं ओर बैठा है। बाएं से B का स्थान क्या है?

Among five friends Pinky, Pooja, Prachi, Neha, and Payal: Pinky is older than only Pooja. Prachi is older than both Pooja and Pinky. Also, Prachi is younger than Neha, who is not the oldest. Who is the oldest?

Suraj ranked 17th from the bottom and 13th from the top in his class. How many students are there in his class?