List of top Quantitative Aptitude Questions on Number Systems asked in CAT

The number of all positive integers up to 500 with non-repeating digits is

\(3^{3333}\) divided by 11, then the remainder would be?

For any natural Number 'n', let a_n be the largest number not exceeding \(\sqrt{n}\) , then a1 + a2 + a3... +a50 =

One direct question from the Number System was 10 to the power 100 divided by seven, candidates had to choose the correct answer for the problem.

Let \(a_n=46+8n\) and \(b_n=98+4n\) be two sequences for natural numbers \(n ≤ 100\) . Then, the sum of all terms common to both the sequences is

The sum of the first two natural numbers, each having 15 factors (including 1 and the number itself), is