A box contains 7 red, 6 white and 4 blue balls. How many selections of three balls on of each colour?
Options
A178
B158
C198
D168
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Permutations and CombinationsMTP Nov 19Question 1711 of 159
All Questions Correct Answer
✅ Option d — 168
All Options:
- A178
- B158
- C198
- D168
About This Chapter: Permutations and Combinations
Paper
Paper 3: Quantitative Aptitude
Weightage
4-6 Marks
Key Topics
Factorials, Permutations, Combinations
This chapter deals with the fundamental principles of counting. It covers factorials, circular permutations, restricted permutations, combinations, and the differences between selecting items versus arranging them.
View Official ICAI SyllabusExam Strategy Tip
The most common mistake is confusing 'P' (Arrangement) with 'C' (Selection). If order matters (like opening a lock), use P. If order doesn't matter (like choosing a team), use C.
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