# Find the remaining balance after the transaction

Given the initial balance as bal and the amount X to be debited, where X must be a multiple of 10 and rupees 1.50 is deducted as the debit charge for each successful debit. The task is to find the remaining balance left after the transaction, which can be successful, or unsuccessful. The balances are in 2 floating-point precision.

Examples:

```Input: X = 50, bal = 100.50
Output: 49.00
Transaction successful

Input: X = 55, bal = 99.00
Output: 99.00
Transaction unsuccessful
```

Approach: Find out if the transaction can be successful or not.

• The transaction can be successful if:
• X is a multiple of 10, and
• the person has at least (X+1.50) rupees, that is the money to be withdrawn plus the charges, in the account.
• In any other case, the transaction will be unsuccessful.
• If the transaction is successful, then deduct the (X + 1.50) amount from the balance and return it
• Else just return the balance.

Below is the implementation of the above approach:

## C++

 `// C++ program to find the remaining balance ` ` `  `#include ` `using` `namespace` `std; ` ` `  `// Function to find the balance ` `void` `findBalance(``int` `x, ``float` `bal) ` `{ ` ` `  `    ``// Check if the transaction ` `    ``// can be successful or not ` `    ``if` `(x % 10 == 0 ` `        ``&& ((``float``)x + 1.50) <= bal) { ` ` `  `        ``// Transaction is successful ` `        ``cout << fixed << setprecision(2) ` `             ``<< (bal - x - 1.50) << endl; ` `    ``} ` `    ``else` `{ ` ` `  `        ``// Transaction is unsuccessful ` `        ``cout << fixed << setprecision(2) ` `             ``<< (bal) << endl; ` `    ``} ` `} ` ` `  `int` `main() ` `{ ` ` `  `    ``int` `x = 50; ` `    ``float` `bal = 100.50; ` ` `  `    ``findBalance(x, bal); ` ` `  `    ``return` `0; ` `} `

## Java

 `// Java program to find the remaining balance ` `import` `java.util.*; ` ` `  `class` `GFG  ` `{ ` ` `  `// Function to find the balance ` `static` `void` `findBalance(``int` `x, ``float` `bal) ` `{ ` ` `  `    ``// Check if the transaction ` `    ``// can be successful or not ` `    ``if` `(x % ``10` `== ``0` `&& ((``float``)x + ``1.50``) <= bal)  ` `    ``{ ` ` `  `        ``// Transaction is successful ` `        ``System.out.printf(``"%.2f\n"``, bal - x - ``1.50``); ` `    ``} ` `    ``else`  `    ``{ ` ` `  `        ``// Transaction is unsuccessful ` `        ``System.out.printf(``"%.2f\n"``, bal); ` `    ``} ` `} ` ` `  `// Driver Code ` `public` `static` `void` `main(String[] args)  ` `{ ` `    ``int` `x = ``50``; ` `    ``float` `bal = (``float``) ``100.50``; ` ` `  `    ``findBalance(x, bal); ` `} ` `} ` ` `  `// This code is contributed by Princi Singh `

## Python3

 `# Python3 program to find the remaining balance ` ` `  `# Function to find the balance ` `def` `findBalance(x,bal): ` ` `  `    ``# Check if the transaction ` `    ``# can be successful or not ` `    ``if` `(x ``%` `10` `=``=` `0` `and` `(x ``+` `1.50``) <``=` `bal): ` ` `  `        ``#Transaction is successful ` `        ``print``(``round``(bal ``-` `x ``-` `1.50``, ``2``)) ` `    ``else``: ` ` `  `        ``# Transaction is unsuccessful ` `        ``print``(``round``(bal, ``2``)) ` ` `  `# Driver Code ` `x ``=` `50` `bal ``=` `100.50` ` `  `findBalance(x, bal) ` ` `  `# This code is contributed by Mohit Kumar `

## C#

 `// C# program to find the remaining balance ` `using` `System; ` ` `  `class` `GFG  ` `{ ` ` `  `// Function to find the balance ` `static` `void` `findBalance(``int` `x, ``float` `bal) ` `{ ` ` `  `    ``// Check if the transaction ` `    ``// can be successful or not ` `    ``if` `(x % 10 == 0 && ((``float``)x + 1.50) <= bal)  ` `    ``{ ` ` `  `        ``// Transaction is successful ` `        ``Console.Write(``"{0:F2}\n"``, bal - x - 1.50); ` `    ``} ` `    ``else` `    ``{ ` ` `  `        ``// Transaction is unsuccessful ` `        ``Console.Write(``"{0:F2}\n"``, bal); ` `    ``} ` `} ` ` `  `// Driver Code ` `public` `static` `void` `Main(String[] args)  ` `{ ` `    ``int` `x = 50; ` `    ``float` `bal = (``float``) 100.50; ` ` `  `    ``findBalance(x, bal); ` `} ` `} ` ` `  `// This code is contributed by PrinciRaj1992  `

Output:

```49.00
```

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