Quantitative Aptitude - Arithmetic Ability Questions

If 'Q ' means ' +', 'J ' means ' X',T ' ' means '- ' and 'K ' means '÷ ', then what is the value of18K3Q7J ?

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

sec2Acosec2A is equal to

If x2+y2+z2-8x+6y-4z+29 = 0, then find the value of z(x+y).

If the value 5 = 2.236,then calculate the value of 405 - 1280-125

In what ratio is the segment joining (12,­1) and (-­3,4) divided by the Y­-axis?

A man covered a certain distance by a train at the speed of 40 km/hr and covers the same distance back by walking at the speed of 8 km/hr. Ifthe whole journey took 12 hours, then what is the one side distance (in km)?

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 396, then what is the difference between the first and the third number?