(90'') is equal to how many minutes?
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Answer and explanation
Correct answer: \(\frac{3}{2}'\)
Since \(1'=60''\), convert \(90''\) into minutes by dividing by 60: \(90''\div 60=\frac{3}{2}'\). Therefore, \(\frac{3}{2}'\) is correct. Note that \(\frac{1}{2}'\) equals only \(30''\). Exam tip: divide by 60 when converting seconds to minutes.
Frequently asked questions
What is the correct answer to this question?
\(\frac{3}{2}'\)
Why is this the correct answer?
Since \(1'=60''\), convert \(90''\) into minutes by dividing by 60: \(90''\div 60=\frac{3}{2}'\). Therefore, \(\frac{3}{2}'\) is correct. Note that \(\frac{1}{2}'\) equals only \(30''\). Exam tip: divide by 60 when converting seconds to minutes.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.
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