Problem-solving frameworks

Story hook

In 1971, the Apollo 13 ground crew at Houston had to fit a square filter into a round hole using only the materials in the spacecraft — a sock, a flight manual cover, and duct tape. They wrote down what they had, what the astronauts had, what they were trying to do, and what would fail if they did nothing. Then they built it from the list. The astronauts came home.

A CSAT candidate in 2024 reads a passage about a panchayat that has ₹2 lakh to spend on two of four candidate works — borewell, road, school roof, primary health post — given community needs, monsoon constraints, and a guideline that at least one health-related work be funded. She has three minutes. She makes a tiny table of cost vs benefit vs constraint, eliminates two options, picks the third. That is exactly the Apollo method, scaled down.

Problem solving in CSAT is the discipline of writing the problem down before reaching for an answer.

Why this matters for UPSC

Problem-solving and case-based reasoning questions contribute 6 to 10 marks per CSAT — about 12% of the qualifying paper. They have grown in share since 2018 as UPSC moved toward "applied" questions that ask candidates to integrate data, constraints, and judgement. The questions are also longer (3 to 4 questions on a single case), so a successful candidate cracks the case once and harvests four marks.