Quantitative Aptitude - Arithmetic Ability Questions

If (1 - cosA)/2 = x, then the value of x is

What is the simplified value of (cotA + tan B)/(cot B + tan A)?

The difference between cost price and selling price is Rs 575. If profit percentage is 23%, then what is the selling price (in Rs)?

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?

Coefficient of x2 in (x + 9)(6 -­ 4x) is

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?

Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?

If 11-13xx + 11-13yy + 11-13zz = 5 then what is the value of 1x + 1y + 1z = ?