CA Foundation · Quantitative Aptitude · Permutations and Combinations
A restaurant in Hyderabad offers 4 starters, 5 main courses and 3 desserts. A customer orders one starter, one main course and one dessert. How many different meal combinations are possible?
There are 60 possible meals. The customer makes three independent choices, one from each category, so the multiplication principle applies: 4 starters × 5 main courses × 3 desserts equals 60. Adding the counts would wrongly treat the choices as alternatives.
- A12
- B60Correct
- C47
- D36
Explanation
By the multiplication principle, the choices are made one after another, so the total is 4 × 5 × 3 = 60. Adding the numbers (4 + 5 + 3 = 12) is wrong because the customer must choose from all three categories, not just one.
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