Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word/letters/number/number pair from the given alternatives.

What is the value of sin 5π/3?

The value of aa-b+bb-a is

If cos 27° = x, the value of tan 63° is

The average of 8 consecutive integers is 23/2. What is the average of first three integers?

The areas of two similar triangles ΔXYZ and ΔPQR are 100 sq cms and 25 sq cms respectively. If PQ = 4 cm then what is the length of XY (in cm)?

√(cosec2 -­ 1)/cosecA is equal to?

Average of the marks of 132 students of a college is 40. If the average of the marks of the passed students is 42 and the average of the marks of the failed students is 20, then what will be the respective ratio of the total marks of passed students and the total marks of failed students?