Quantitative Aptitude - Arithmetic Ability Questions

Which of the following numbers is a perfect square?

If selling price is Rs. 72 and Gain percentage = 20%, calculate the Cost Price.

In a mixture of milk and water, there is 19% milk. If the quantity of milk in the mixture is 437 mililitres, then what is the total quantity (in millilitres) of mixture?

In the following question, select the odd word from the given alternatives.

What is the equation of the line perpendicular to the line 5x + 3y = 6 and having Y-intercept -3?

If cosec 45° - sin 30° = x, then x is

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

Find out the odd word/letters/number/number pair from the given alternatives.