2009 General Studies, all questions
UPSC Prelims 2009 · General Studies
Question 104: Logical Reasoning and Mental Ability
How many times are an hour hand and a minute hand of a clock at right angles during their motion from 1.00 p.m. to 10.00 p.m.?
a9
b10
c18
d20
The published answer to this question looks wrong to us, so none is shown until it has been checked.
Source: UPSC, Civil Services (Preliminary) Examination 2009, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.