Quantitative Aptitude - Arithmetic Ability Questions

If aq-r+br-p-cp-q, then find the value of (pa + qp + rc) is

What is the value of [(cos 7A + cos 5A)÷(sin 7A – sin 5A)]?

If x = 2 +√3, y = 2 – √3 and z = 1, then what is the value of (x/yz) + (y/xz) + (z/xy) + 2 [(1/x) + (1/y) + (1/z)]?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the value of (sinA -­ 2sin3A)/(2cos3A -­ cosA)?

If 3x -­ 7 = 5x ­- 1, then the numerical value of (x ­- 4)2 is 

Mr. Mahesh sold a bus for Rs. 22,100 with a loss of 15%. At what price should the bus be sold to get a profit of 15%?

5 litres of honey contains 80% sugar. 3 litres of water is added to this honey. What is the percentage of sugar in the new mixture?