 ## What comes out?

1. x = 7;

while  (x < 12)

{System.out.print(x);

x++;

}

2. x = 5; y = 12;

while (x < y)

{System.out.print( x + y);

x++;

y--;

}

3. sum = 40;

while (sum > 10)

{sum -= 7;

System.out.print(sum);

}

4. sum = 0;

while (sum < 25)

{sum + =4;

System.out.print(sum);

}

5. x = 15;

while (x > 4)

{if (x % 2== 0)

System.out.print(x);

x--;

}

6. x = 3; y = 8;

while (x <= y)

{System.out.print(x * y);

x ++;

}

7. x = 4; y= 7;

while (x + y < 25)

{System.out.print( x + y);

x++;

y++;

}

8. x = 7;

while ( x >= 3)

{System.out.print(x * 2);

x--;

}

9. x = 8;

while (x < 15){

System.out.print(x + 3);

x = x + 2;

}

10. x = 15;

while (x < 15){

System.out.print( x);

x-= 3;

}

11. x =10; y = 5;

while (x * y < 200)

{System.out.print(x);

x =x + 2;

y = y + 2;

}

12. sum = 50; x = 6;

while (sum > 0)
{ sum = sum - x;

x = x + 3;

}

System.out.print( sum);

13. power = 1;

while (power < 100)
{power  * = 2;

System.out.print( power);

}

14. j = 1;

while (j <= 10)
{System.out.println(j);

j++;

}

15. a = 2;

while (a != 20)
{System.out.print(a);

a *= 2;

}

16. x = 15;

while (x >= 2)

{if (x % 3 ==0)

System.out.print( x);

x--;

}

17. sum =0; x = 1;

while (sum < 100)

{sum += x;

x++;

}

System.out.print(sum +" " +x);

18. x = 20;

while ( x > 1)

{if x % 3==0 || x % 5==0)

System.out.print(x);

x--;

}

19. a= 5; b = 6;

sum = 0;

while (sum < 75)

{sum = sum + a + b;

a = a + 2;

b = b + 3;

}

System.out.print( sum);

20. a = 48;

b = 47;

while (a % b != 0)

b--;

System.out.print(b);

21. Write a program that wiill let you enter a number and will then print out the multiple for that number under 1000.

22. Write a program that will let you enter numbers until you enter a -1 and will then print out the sum and the average of the numbers that you entered.

23. A cell doubles every hour. If you start with 1 cell how many hours until you have 5000000 cells. Write a program that will tell you the answer.

24   Find LCM for 2 numbers entered.

25. Find GCF for 2 numbers entered.

26. Print out  first 5 factors of a number that is entered.

27. Print out 5 biggest factors of a number that is entered.

28.1/2 + 1/3 + 1/4 .... What denominator makes sum go over 4? Write a program to tell you the answer.

29. 1 + 4 + 7 + 10 ... What is last number that makes sum go over 1 million.

30. 2000 in bank. 5% interest a year. You withdraw 50 a year. How many years until you have 5000.

31. You sell house for 200000. You get 4% interest a year. You spend 14000 a year. How many years until you run out of money.

32. You start with 2 rabbits. They double every 14 days. How many days until you have 5000 rabbits.