# Find amount of water wasted after filling the tank

Given the volume **V** of a tank in liter. There is a pump which is filling the tank at speed of **M** liter per minute. There is a leakage at the bottom of the tank which wasting water at speed N liter per minute. Given N is less than M. The task is to calculate how much amount of water will be wasted if leakage is seen after filling the full tank.**Examples:**

Input :V = 700, M = 10, N = 3Output :300Input :V = 1000, M = 100, N = 50Output :1000

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**Approach :** Given the speed of filling pump is M liter per minute. So, the amount of water filled in one minute is M Liter. Also, N litres of water is wasted in a minute. Therefore after one minute the amount of water in the tank will be (M – N). Hence total time taken to fill the tank with leakage will be V / (M-N).

Therefore the amount of wasted water will be (V / (M-N)) * N.

Below is the implementation of the above approach:

## C++

`// C++ program to find the volume of water wasted` `#include <iostream>` `using` `namespace` `std;` `// Function to calculate amount of wasted water` `double` `wastedWater(` `double` `V, ` `double` `M, ` `double` `N)` `{` ` ` `double` `wasted_amt, amt_per_min, time_to_fill;` ` ` `// filled amount of water in one minute` ` ` `amt_per_min = M - N;` ` ` `// total time taken to fill the tank` ` ` `// because of leakage` ` ` `time_to_fill = V / amt_per_min;` ` ` `// wasted amount of water` ` ` `wasted_amt = N * time_to_fill;` ` ` `return` `wasted_amt;` `}` `// Driver code` `int` `main()` `{` ` ` `double` `V, M, N;` ` ` `V = 700;` ` ` `M = 10;` ` ` `N = 3;` ` ` `cout << wastedWater(V, M, N) << endl;` ` ` `V = 1000;` ` ` `M = 100;` ` ` `N = 50;` ` ` `cout << wastedWater(V, M, N) << endl;` ` ` `return` `0;` `}` |

## Java

`// Java program to find the` `// volume of water wasted` `class` `GFG` `{` ` ` `// Function to calculate amount of wasted water` `static` `double` `wastedWater(` `double` `V, ` `double` `M, ` `double` `N)` `{` ` ` `double` `wasted_amt, amt_per_min, time_to_fill;` ` ` `// filled amount of water in one minute` ` ` `amt_per_min = M - N;` ` ` `// total time taken to fill the tank` ` ` `// because of leakage` ` ` `time_to_fill = V / amt_per_min;` ` ` `// wasted amount of water` ` ` `wasted_amt = N * time_to_fill;` ` ` `return` `wasted_amt;` `}` `// Driver code` `public` `static` `void` `main(String[] args)` `{` ` ` `double` `V, M, N;` ` ` `V = ` `700` `;` ` ` `M = ` `10` `;` ` ` `N = ` `3` `;` ` ` `System.out.println(wastedWater(V, M, N)) ;` ` ` `V = ` `1000` `;` ` ` `M = ` `100` `;` ` ` `N = ` `50` `;` ` ` `System.out.println(wastedWater(V, M, N));` `}` `}` `// This Code is Contributed by Code_Mech.` |

## Python3

`# Python3 program to find the volume` `# of water wasted` `# Function to calculate amount` `# of wasted water` `def` `wastedWater(V, M, N):` ` ` `# filled amount of water in one minute` ` ` `amt_per_min ` `=` `M ` `-` `N` ` ` `# total time taken to fill the tank` ` ` `# because of leakage` ` ` `time_to_fill ` `=` `V ` `/` `amt_per_min` ` ` `# wasted amount of water` ` ` `wasted_amt ` `=` `N ` `*` `time_to_fill` ` ` `return` `wasted_amt` `# Driver code` `V ` `=` `700` `M ` `=` `10` `N ` `=` `3` `print` `(wastedWater(V, M, N))` `V ` `=` `1000` `M ` `=` `100` `N ` `=` `50` `print` `(wastedWater(V, M, N))` `# This code is contributed by Shrikant13` |

## C#

`// C# program to find the` `// volume of water wasted` `using` `System;` `class` `GFG` `{` ` ` ` ` `// Function to calculate amount of wasted water` ` ` `static` `double` `wastedWater(` `double` `V, ` `double` `M, ` `double` `N)` ` ` `{` ` ` `double` `wasted_amt, amt_per_min, time_to_fill;` ` ` ` ` `// filled amount of water in one minute` ` ` `amt_per_min = M - N;` ` ` ` ` `// total time taken to fill the tank` ` ` `// because of leakage` ` ` `time_to_fill = V / amt_per_min;` ` ` ` ` `// wasted amount of water` ` ` `wasted_amt = N * time_to_fill;` ` ` ` ` `return` `wasted_amt;` ` ` `}` ` ` ` ` `// Driver code` ` ` `public` `static` `void` `Main()` ` ` `{` ` ` `double` `V, M, N;` ` ` `V = 700;` ` ` `M = 10;` ` ` `N = 3;` ` ` `Console.WriteLine(wastedWater(V, M, N)) ;` ` ` ` ` `V = 1000;` ` ` `M = 100;` ` ` `N = 50;` ` ` `Console.WriteLine(wastedWater(V, M, N));` ` ` `}` `}` `// This Code is Contributed by ihritik` |

## PHP

`<?php` `// PHP program to find the` `// volume of water wasted` `// Function to calculate amount of wasted water` `function` `wastedWater(` `$V` `, ` `$M` `, ` `$N` `)` `{` ` ` `// filled amount of water in one minute` ` ` `$amt_per_min` `= ` `$M` `- ` `$N` `;` ` ` `// total time taken to fill the tank` ` ` `// because of leakage` ` ` `$time_to_fill` `= ` `$V` `/ ` `$amt_per_min` `;` ` ` `// wasted amount of water` ` ` `$wasted_amt` `= ` `$N` `* ` `$time_to_fill` `;` ` ` `return` `$wasted_amt` `;` `}` `// Driver code` `$V` `= 700;` `$M` `= 10;` `$N` `= 3;` `echo` `wastedWater(` `$V` `, ` `$M` `, ` `$N` `), ` `"\n"` `;` `$V` `= 1000;` `$M` `= 100;` `$N` `= 50;` `echo` `wastedWater(` `$V` `, ` `$M` `, ` `$N` `);` `// This Code is Contributed by ihritik` `?>` |

## Javascript

`<script>` `// Javascript program to find the` `// volume of water wasted` `// Function to calculate amount of wasted water` `function` `wastedWater(V, M, N)` `{` ` ` `let wasted_amt, amt_per_min, time_to_fill;` ` ` ` ` `// filled amount of water in one minute` ` ` `amt_per_min = M - N;` ` ` ` ` `// total time taken to fill the tank` ` ` `// because of leakage` ` ` `time_to_fill = V / amt_per_min;` ` ` ` ` `// wasted amount of water` ` ` `wasted_amt = N * time_to_fill;` ` ` ` ` `return` `wasted_amt;` `}` ` ` `// driver program` ` ` ` ` `let V, M, N;` ` ` `V = 700;` ` ` `M = 10;` ` ` `N = 3;` ` ` `document.write(wastedWater(V, M, N), ` `"<br>"` `) ;` ` ` ` ` `V = 1000;` ` ` `M = 100;` ` ` `N = 50;` ` ` `document.write(wastedWater(V, M, N));` ` ` `</script>` |

**Output:**

300 1000