Oct 08, 2026 by Offer

Goldman Sachs Brainteaser: Clock Angle at 9:45 – How to Solve It (2027)

The "Goldman Sachs clock angle brainteaser 9:45" interview question is commonly reported by candidates interviewing at Goldman Sachs. The angle is 22.5 degrees. At 9:45 the minute hand points exactly at the 9, while the hour hand has moved three-quarters of the way from the 9 toward the 10 — that is 22.5 degrees past the 9. Since each hour mark is 30 degrees, the gap between the hands is 30 minus 22.5, which equals 7.5 degrees. Show the working, not just the number.

What Goldman Sachs Assesses With "goldman sachs clock angle brainteaser 9:45"

Brainteasers like this test structured thinking under time pressure, not mental arithmetic. Candidates commonly report that interviewers care about the method: stating that the hour hand moves continuously (0.5 degrees per minute) is what earns the mark — the final number alone does not.

How to Answer: Goldman Sachs "goldman sachs clock angle brainteaser 9:45" Question

Step 1: fix the minute hand — at 45 minutes it points exactly at the 9.
Step 2: move the hour hand — 45 minutes is three-quarters of an hour, so it has traveled 0.75 × 30 = 22.5 degrees past the 9.
Step 3: subtract — 30 − 22.5 = 7.5 degrees between the hands.

Example phrasing: "The minute hand is exactly on the 9; the hour hand drifts 0.5 degrees per minute, so after 45 minutes it sits 22.5 degrees past the 9 — the angle between them is 7.5 degrees."

Quick Practice Drill

Practice drill: explain this question aloud to someone with no finance background, then to a peer who will interrupt with follow-ups. If you can survive three "why?" questions in a row without losing the thread, commonly reported by candidates, you are ready for the interview room.

Common Mistakes

Assuming the hour hand sits exactly on the 9 — the classic trap.
Giving only the final number with no working, which scores nothing if it is wrong.
Panicking on arithmetic instead of narrating the method calmly.

Technical questions are elimination rounds: one shaky answer can end the interview regardless of how strong your story answers are. Candidates who drill the standard questions until the mechanics are automatic walk in calm.

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FAQ

What is the general formula?

Angle = |30H − 5.5M| degrees, adjusted to the smaller angle — but show the reasoning, not just the formula. Rehearse your answer aloud at least three times before the interview — delivery matters as much as content.

Do banks still ask brainteasers?

Less often than before, but they appear; treat them as structure tests. Rehearse your answer aloud at least three times before the interview — delivery matters as much as content.

What if I get the number wrong?

A clean method with a small arithmetic slip still impresses — narrate each step. Rehearse your answer aloud at least three times before the interview — delivery matters as much as content.

How fast should I answer?

Take 30 to 60 seconds to think aloud; rushing into a wrong answer is worse. Rehearse your answer aloud at least three times before the interview — delivery matters as much as content.

Preparing for Goldman Sachs's interview? Our 2027 Goldman Sachs Video Interview, Coding & Math Technical Assessment Answers has practice questions and answers — $79 one-time, instant download.