If 2 cosθ =x+1/x , Find 2cos3θ HomeQuantitative aptitudeIf 2 cosθ =x+1/x , Find 2cos3θquantitative aptitudeIf 2 cosθ =x+1/x , Find 2cos3θ?Answer: Option BSol:
In a class, 15% of total number of students failed in Science, 25% of total number of students failed in Maths and 10% of total number of students failed in both. How much percentage of students passed in both Maths and Science?
