List of top Quantitative Aptitude Questions on Number Series

Find the missing number in the series: \(2, 6, 12, 20, 30, \_\_\).

Complete the series: \(285,\,253,\,221,\,189,\,?\)

How many even numbers are there in the series which are preceded as well as followed by an even number?

There are 3 consecutive odd numbers and 3 consecutive even numbers. The smallest even number is 9 more than the largest odd number. If the square of the average of odd numbers is 507 less than the square of the average of even numbers, what is the smallest odd number?

A series is given with two terms missing. Choose the correct alternatives from the given ones that will complete the series:
3, 5, 35, 10, 12, 35, ___, ___}

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series:
36, 34, 30, 28, 24, ___}

In the following question, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series.
4832, 5840, 6848, ___}

In the following question, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series.
2, 15, 41, 80, ___}

In the following question, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series.
4, 6, 9, 13.5, ___}

What number will come in the blank in the following number series?
13, 14, 22, 31, _____, 120, 336}

What will come in place of question mark(?) in the following series? 767,495, 359, 291, 257,?

What should come in place of question mark(?) in the following number series? 132 156 ? 210 240 272

The next number in the sequence is: 19, 29, 37, 43, …

Instructions: A numerical machine accepts two values X and Y. At every step, it updates the values as X = X times Y, and Y = Y + 1. The machine stops as soon as X becomes greater than or equal to N.

For X = 3, Y = 2 and N = 100, how many steps are performed before the machine stops?

Instructions: A numerical machine accepts two values X and Y. At every step, it updates the values as X = X times Y, and Y = Y + 1. The machine stops as soon as X becomes greater than or equal to N.

If X = 2 and Y = 3, what should be the minimum value of N (from the options given) such that the final value of Y is 7?

Instructions: A numerical machine accepts two values X and Y. At every step, it updates the values as X = X times Y, and Y = Y + 1. The machine stops as soon as X becomes greater than or equal to N.

Using the same values as the previous question (X = 3, Y = 2, N = 100), what is the final value of X?

Instructions: A numerical machine accepts two values X and Y. At every step, it updates the values as X = X times Y, and Y = Y + 1. The machine stops as soon as X becomes greater than or equal to N.

Using the same values as before (X = 3, Y = 2, N = 100), what is the final value of Y?

Instructions: A numerical machine accepts two values X and Y. At every step, it updates the values as X = X times Y, and Y = Y + 1. The machine stops as soon as X becomes greater than or equal to N.

Starting again from X = 3, Y = 2, if the value of N is changed to 500, what would be the final value of X?

The sum of prime numbers that are greater than 60, but less than 70 is:

The missing numbers in the following series would be:
1 : 1, 8 : 4, 9 : 27, 64 : 16, 25 : 125, ? : ?, 49 : 343

Two different prime numbers X and Y, both are greater than 2, then which of the following must be true?

Find out the appropriate next number in the series from the options below: 0, 2, 6, 12, 20, 30, 42, ?