Quantitative Aptitude - Arithmetic Ability Questions

Mohan earns a profit of 20% on selling a jean at 15% discount on printed price. The ratio of the cost price to printed price of the jean is

There are two numbers such that the first number is half of the second number. If their average is 57, then what is the first number?

Factorise x2 + 3x -­ 18

Five angles of a hexagon measure 116 deg each. What is the measure of the remaining angle?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

If x2 – 12x + 33 = 0, then what is the value of (x – 4)2 + [1/(x – 4)2]?

What is the simplest form of (1 + cosA)(cosecA ­ cotA)?

Two students appeared for an examination. One of them secured 13 marks more than the other and his marks were 76% of the sum of their marks. The marks obtained by them are