Quantitative Aptitude - Arithmetic Ability Questions

If (x - 13)2 + (y - 4)2 = 0, then the value of y + xy - x ?

If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is

What is the value of sec 5π/4?

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

The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?

Which of the following will give a terminating decimal?

Find 2 consecutive natural numbers, sum of whose squares is 25.