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

In the following number series, a wrong number is given. Find out the wrong number.
2 , 6 ,13 , 31 , 69 ,147 , 305.

If\(35 \$9 - 1865 = 1 \times 24\), which of the following digits will replace\(\$\)?

What is the least square number exactly divisible by 4, 5, 6, 12, 15, 18 and 36 ?

In the following number series, a wrong number is given. Find out the wrong number.
508 , 252 ,124 , 60 , 28 ,14 , 4

The number obtained after interchanging the two digits of a two digit number is greater than the original number by 9. If the sum of the two digits of the number is 13, what is the original number?