UPSC 2007: Six equidistant vertical lines are drawn on a board. Six equidistant horizontal lines are also drawn on the board cutting the six vertical lines and the distance between any two consecutive horizontal lines is equal to that between any two consecutive vertical lines. What is the maximum number of squares thus formed?

The correct answer is option (b): 55. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.

This question was asked in UPSC CSE Prelims 2007, GS Paper 1, as Question 143. It falls under Science & Technology > Quantitative Aptitude.

This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.

UPSC has asked 164 questions from Quantitative Aptitude (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.