CAT Quant Practice Problems

Question: If there are 10 positive real numbers ${n_1} < {n_2} < {n_3}... < {n_{10}},$how many triplets of these numbers$({n_1},{n_2},{n_3}),({n_2},{\rm{ }}{n_3},{n_4}),{\rm{ }}...$can be generated such that in each triplet the first number is always less than the second number, and the second number is always less than the third number?

 45 90 120 180

CAT Quant Online Course

• 1000+ Practice Problems
• Detailed Theory of Every Topics
• Online Live Sessions for Doubt Clearing
• All Problems with Video Solutions
CAT Quant Practice Problems