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nth term of an AP[BASIC]

Given the first 2 terms of Arithmetic Series tell the nth term of the series. 
Input:
First line contains an integer, the number of test cases 'T'. Each test case in its first line should contain two positive integer a and b(First 2 terms of AP). In the second line of every test case it contains of an integer N.

Output:
In each seperate line print the Nth term of the Arithmetic Progression.

Constraints:
1<=T<=30
-100<=a<=100
-100<=b<=100
1 <= N <= 100

Example:
Input:
2
2 3
4
1 2
10
Output:
5
10
CODE:
import java.util.*;
import java.lang.*;
import java.io.*;

class GFG {
public static void main (String[] args) {
Scanner sc = new Scanner (System.in);
int m =sc.nextInt();
for(int mi=0;mi<m;mi++){
    int a=sc.nextInt();
    int b = sc.nextInt();
    int d= b-a;
    int n =sc.nextInt();
    System.out.println(a+(n-1)*d);
}
}
}
EXECUTION TIME:0.09s

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