This challenge is about basic mathematical operations. You will be given 2 numbers a and b. You need to perform the following operations:

1. Sum of a and b
2. Difference of a and b
3. Multiplication of a and b
4. Division of a and b

You need to return a tuple containing the results of the above operations in the same order. (sum, difference, multiply, divide)

Note that every value in the tuple must be of type i32.

let a = 10;
let b = 5;
let result = math_operations(a, b);
assert_eq!(result, (15, 5, 50, 2));

In Rust you can use the following operators for the above operations:

1. Sum: +
2. Difference: -
3. Multiplication: *
4. Division: /

Good luck!