Lesson 3 of 5 · Person-attribute grid (3-4 variables)
Count attributes
Matrix / Distribution Puzzles · for IPMAT Indore, IPMAT Rohtak and JIPMAT · asked in JIPMAT 2022
Worked examples
Example 2Sitter
JIPMAT 2021: A and B play football (both study mathematics, one also physics); C plays cricket (chemistry, biology); D boxes (mathematics, accounts). How many games and subjects?
Solution: 3 games and 5 subjects. Football, cricket, boxing; mathematics, physics, chemistry, biology, accounts.
Watch out
- Count distinct values: two students studying mathematics give one subject, not two.
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