There are three sections in the SBI PO Prelims Exam, namely English Language, Quantitative Aptitude, and Reasoning Ability. Each section has a different number of questions. Let's discuss each section in detail:

1. English Language:
In the English Language section, there are typically 30 questions. This section aims to test the candidate's proficiency in the English language and includes questions on grammar, vocabulary, reading comprehension, and sentence formation. The questions are designed to evaluate the candidate's understanding of the English language and their ability to comprehend and analyze written passages.

2. Quantitative Aptitude:
The Quantitative Aptitude section consists of 35 questions. This section evaluates the candidate's numerical ability and problem-solving skills. It includes questions on topics such as mathematical calculations, data interpretation, number series, simplification, and arithmetic. Candidates are required to solve numerical problems accurately within a given time frame.

3. Reasoning Ability:
The Reasoning Ability section also consists of 35 questions. This section assesses the candidate's logical reasoning and analytical skills. It includes questions on topics like puzzles, seating arrangement, coding-decoding, blood relations, syllogism, and logical reasoning. Candidates are required to think critically and analyze the given information to arrive at the correct answers.

Overall, the SBI PO Prelims Exam consists of a total of 100 questions, with each section having a specific number of questions. It is important for candidates to allocate their time wisely and practice extensively in each section to maximize their score.