Quantitative Aptitude - Arithmetic Ability Questions

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

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

How much does one need to add to 2/3 to obtain 3/2?

Two circles touch externally. The sum of their areas is 130π sq.cm and the distance between their centers is 14 cm. The radius of the bigger circle is

If a - b = 3 and a2+b2=25, then the value of ab is

If y=2secθ and x=3tanθ then x29-y24 is

A person goes from point N to P and comes back. His average speed for the whole journey is 60 km/hr. If his speed while going from N to P is 40 km/hr, then what will be the speed of the person (in km/hr) while coming back from P to N?

Josna takes 4 hrs 30 min in walking a distance and riding back to some place where she started. She could walk both ways in 5 hrs 40 min. The time taken by her to ride back both ways is