Give me name of some best books for improvement in solving question for Numerical Aptitude examination ?

Here I am giving you name of some best books for improvement in solving question for Numerical Aptitude examination below :

Text Book of Quickest Mathematics: Quantitative Aptitude & Numerical Ability Useful for all Competitive Exams
(Paperback)



Numerical Ability & Mathematical Aptitude




GATE - 2014: Verbal & Numerical Ability [Paperback]
ME Team (Author)




Quantitative Aptitude Quantum CAT Common Admission Tests for Admission into IIMs [Paperback]
Sarvesh K. Verma (Author)