Quantitative Aptitude - Arithmetic Ability Questions

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

What is the value of 4600+540+1280+250+36 ?

In the following question, select the odd letter pair from the given alternatives.

ΔDEF is right angled at E. If cosD = 8/17, then what is the value of secF ?

If 4(4x + 5) > 2x - 1 > 4x - 3, then the value of x is

54% of 4000 is

The profit (in Rs.) after selling an article for Rs.524 is the same as the loss (in Rs.) after selling it for Rs.452. The cost price of the article is:

A mixture of 240 litres of juice and water contains 15% water. How much more water (in litres) should be added to this so that the strength of water will become 25% in the new mixture?