Lesson 4 of 5 · Age relation puzzles
Age sufficiency
Age / Quant-Reasoning puzzles · for IPMAT Indore, IPMAT Rohtak and JIPMAT · asked in Rohtak 2019
The exam method
- Sufficiency: a statement is enough only if it gives a numeric equation; two pure differences never fix an age.
- Ratios: write the ages as ak and bk, then use one more statement to find k.
Worked examples
Example 2
Ages 3 : 5 now; four years ago the ratio was 1 : 2. 2(3k - 4) = 5k - 4, k = 4: B is 20.
Watch out
- Using 'older than' for 'times as old as'.
Picked from the Age relation puzzles note for this micro-concept automatically. The whole note: Age relation puzzles.