Quantitative Aptitude - Arithmetic Ability Questions

If cosec 45° - sin 30° = x, then x is

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

Two students appeared for an examination. One of them secured 16 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

Find two numbers such that their mean proportion is 12 and third proportion is 768.

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

Sec 45% + Tan 30% =

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

What is the reflection of the point (2, 3) in the line y = 4?