Concentration of juice after mixing n glasses in equal proportion
Given an array arr[] where arr[i] is the concentration of juice in ith glass. The task is to find the concentration of the resultant mixture… Read More »
Category Archives: Mathematical
Maximum sum after repeatedly dividing N by a divisor
Given an integer N. The task is to find the maximum possible sum of intermediate values (Including N and 1) attained after applying the beow… Read More »
Numbers of Length N having digits A and B and whose sum of digits contain only digits A and B
Given three positive integers N, A and B. The task is to count the numbers of length N containing only digits A and B and… Read More »
Make all elements of an array equal with the given operation
Given an array arr[] of n integers and an integer k. The task is to make all the elements of arr[] equal with the given… Read More »
Maximum size of sub-array that satisfies the given condition
Given an array arr[] of integers. The task is to return the length of the maximum size sub-array such that either one of the condition… Read More »
Number of elements with even factors in the given range
Given a range [n, m], the task is to find the number of elements that have even number of factors in the given range (n… Read More »
Maximum number of teams that can be formed with given persons
Given two integers N and M which denote the number of persons of Type1 and Type2 respectively. The task is to find the maximum number… Read More »
Count of alphabets whose ASCII values can be formed with the digits of N
Given an integer N. You can select any two digits from this number (the digits can be same but their positions should be different) and… Read More »
Puzzle | Neighbors in a round table
There are 6 persons seating on a round table in which two individual have the same names. What is the probability that the two same-named… Read More »
Total position where king can reach on a chessboard in exactly M moves
Given an integer M, an 8 * 8 chessboard and the king is placed on one of the square of the chessboard. Let the coordinate… Read More »
Find M-th number whose repeated sum of digits of a number is N
Given two positive integers N and M. The task is to find M-th number whose sum of digits of a number until sum becomes single… Read More »
Check if a number can be represented as a sum of 2 triangular numbers
Given an integer N, the task is to find out whether it can be written as a sum of 2 triangular numbers (which may or… Read More »
Maximize the value of x + y + z such that ax + by + cz = n
Given integers n, a, b and c, the task is to find the maximum value of x + y + z such that ax +… Read More »
Absolute difference between the first X and last X Digits of N
Given two integers N and X. The task is to print the absolute difference between the first X and last X digits in N. Considering… Read More »
Make all numbers of an array equal
Given an array arr[], the task is to make all the array elements equal with the given operation. In a single operation, any element of… Read More »