Posts

Age related problems

  Age M. Velrajan 1. Murali’s present age is half of his father’s age. Before 10 years, his father’s age was thrice his age. Find the present age of Murali and his father.   (a)16, 32 years              (b) 15, 30 years              (c)20, 40 years            (d)17, 34 years In the answer choices Murali and his father ages are given and all the choices satisfies the given condition that Muralis’s present age is half of his father’s age. So we verify which one satisfies the  other condition “Before 10 years, his father’s age was thrice his age”.             Choice       - 10          First × 3           16, 32      6, 22           6 × 3 = 18 ≠ 22       ...

Data Interpretation and Data Sufficiency

Image
Data Interpretation and Data Sufficiency M. Velrajan Data Interpretation 8. Total boys taken admission in college B & D together are what percent more than total boys taken admission in E? (a) 92.5% (b) 97.5% (c) 99.5% (d) 102.5%  (e) 84.5% From the graphs       Total               Girls                         Boys A   12000           44%   = 5280              6720 B   10500           36%   = 3780              6720  C   9000             48%   = 4320             4680   D  18000            32%   = 5760              12240    E  16000 ...