## Aptitude | Series | Question 6

Find wrong number in series: 2, 3, 6, 0, 8, -3, 14, -6 (A) 3 (B) 0 (C) 8 (D) 3 Answer: (C) Explanation: two… Read More »

- Find the Nth term of the series 14, 28, 20, 40,.....
- Arithmetic Progression
- Sum of all odd natural numbers in range L and R
- Sum of kth powers of first n natural numbers
- Find n positive integers that satisfy the given equations
- Program to find sum of harmonic series
- Geometric Progression
- Program to find nth term of the series 1 4 15 24 45 60 92
- Generate minimum sum sequence of integers with even elements greater
- Find nth term of the series 5 2 13 41
- Sum of the series K
^{n}+ ( K^{(n-1)}* (K-1)^{1}) + ( K^{(n-2)}* (K-1)^{2}) + ....... (K-1)^{n} - Summing the sum series
- Sum of the natural numbers (up to N) whose modulo with K yield R
- Sum of numbers from 1 to N which are in Lucas Sequence
- Find nth Hermite number
- Find the nth term of the series 0, 8, 64, 216, 512, . . .
- Sum of all natural numbers in range L to R
- Find the value of f(n) / f(r) * f(n-r)
- Find if the given number is present in the infinite sequence or not
- Harmonic Progression
- Find Nth term of the series 1, 5, 32, 288 ...
- Find Nth term of the series 1, 6, 18, 40, 75, ....
- Sum of the series 1, 2, 4, 3, 5, 7, 9, 6, 8, 10, 11, 13.. till N-th term
- Find the nth term of the given series
- Maximum value of |arr[0] - arr[1]| + |arr[1] - arr[2]| + ... +|arr[n - 2] - arr[n - 1]| when elements are from 1 to n
- Program to find the Nth term of the series 0, 3/1, 8/3, 15/5........
- Find the sum of first N terms of the series 2*3*5, 3*5*7, 4*7*9, ...
- Program to find the nth term of the series -2, 4, -6, 8....
- Find the Nth term of the series 9, 45, 243,1377
- Print first N terms of series (0.25, 0.5, 0.75, ...) in fraction representation

Find wrong number in series: 2, 3, 6, 0, 8, -3, 14, -6 (A) 3 (B) 0 (C) 8 (D) 3 Answer: (C) Explanation: two… Read More »

Find wrong number in series: 4, 12, 48, 240, 1240, 10080 (A) 12 (B) 240 (C) 1240 (D) 10080 Answer: (C) Explanation: 4*3=12 12*4=48 48*5… Read More »

Find wrong number in series: 2, 7, 10, 22, 18, 37, 26, 46 (A) 10 (B) 18 (C) 26 (D) 46 Answer: (D) Explanation: two… Read More »

Find wrong number in series: 1, 4, 9, 16, 25, 32, 49, 64 (A) 9 (B) 25 (C) 32 (D) 64 Answer: (C) Explanation: Square… Read More »

Find wrong number in series: 34, 7, 37, 14, 36, 28, 43, 56 (A) 14 (B) 36 (C) 28 (D) 56 Answer: (B) Explanation: mixture… Read More »

Find wrong number in series: 12, 25, 49, 99, 187, 395, 789 (A) 789 (B) 187 (C) 99 (D) 49 Answer: (B) Explanation: 12*2+1 =25… Read More »

This is one of the most used techniques in competitive programming. Let us first consider below simple question. What is the minimum time complexity to… Read More »

A number is termed as triangular number if we can represent it in the form of triangular grid of points such that the points form… Read More »

Example : Input : 2 Output: 7 Series: (1) + (2*3) Input : 4 Output: 5167 Series: (1) + (2*3) + (4*5*6) + (7*8*9*10)… Read More »

Given a digit ‘d’ and a range [L, R] where L < R, print all good numbers in given range that don't contain digit 'd'.… Read More »

Find the n’th term in Look-and-say (Or Count and Say) Sequence. The look-and-say sequence is the sequence of below integers: 1, 11, 21, 1211, 111221,… Read More »

If inverse of a sequence follows rule of an A.P i.e, Arithmetic progression, then it is said to be in Harmonic Progression.In general, the terms… Read More »

Catalan numbers are a sequence of natural numbers that occurs in many interesting counting problems like following. 1) Count the number of expressions containing n… Read More »

The Fibonacci numbers are the numbers in the following integer sequence. 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ……..… Read More »

Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence 1, 2, 3, 4, 5, 6, 8, 9, 10, 12,… Read More »