... Quantitative Aptitude Cheat Sheet Number system Natural Numbers: 1, 2, 3, 4… Whole Numbers: 0, 1, 2, 3, 4… Integers: ... Hence, b for even n ⎯ www.BankExamsToday.com ± ⎯ b+ ⎯ +…⎯ ⎯ is divisible by a + Page Quantitative Aptitude Cheat Sheet = (a + b) ( ⎯ (n ⎯odd) Hence, + for odd n + b+ +…+ is divisible by a + b + + ... Reciprocal ratio of a : b is b : a = Componendo and Dividendo If = & a b then = × 100 Page Quantitative Aptitude Cheat Sheet Four (non-zero) quantities of the same kind a, b, c, d are said t o be in proportion...