Quantitative Aptitude - Arithmetic Ability Questions

A boat covers a distance of 14 km upstream and 16 km downstream in 9 hours. It covers a distance of 12 km upstream and 40 km downstream in 11hours. What is the speed (in km/hr) of the boat in still water?

If the product of two numbers is 2522 and their LCM is 97 then their HCF is

If x1x2x3 = 4(4 + x1 + x2 + x3 ), then what is the value of [1/(2 + x1 )] + [1/(2 + x2 )] + [1/(2 + x3 )]?

X attempts 94 questions and gets 141 marks. If for every correct answer 4 marks is given, and for every wrong answer 1 mark is deducted, then the number of questions wrongly answered by X is __.

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

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

Volume of a cube is 512 cubic cm, find its total surface area? (Take π = 22/7)

Koushik can do a piece of work in X days and Krishnu can do the same work in Y days. If they work together, then they can do the work in