[Help in Pascal] writing program with loop

[zachacham]

hey all,

According to my Pascal's homework I finds difficult to program the next question:

Write a program that will find and print the first dual-digits number that fulfilling the next term:

The sum of the two digits must be 7 AND and tens's digit must at least bigger then 3 from the unity.

I tried solving this question, here's my following attemp:

Program Dual_number;
var
i,tens,unity:integer;
begin {main}
for i:=10 to 99 do
begin {loop}
tens:=i mod 10;
unity:=i div 10;
if (tens+unity=7) and (ten-unity>3) then
writeln(i);
end; {loop}
end. {main}

Thanks in advanced!

[Devil Fish]

My Pascal is very rusty, but can't you use the If, Then, Else function to resolve this?

:unsure:

[huddy]

I'm not sure I understand the question.

What is the expected answer? (I think is 43)

[zachacham]

  huddy said:

I'm not sure I understand the question.

What is the expected answer?  (I think is 43)

585051770[/snapback]

It's 16.

[huddy]

OK. I ran your program and got the answer of 16.

Well done. It works.

What's the problem?

[zachacham]

it's wrong... I don't know the expected answer

[huddy]

  Quote

'tens's digit must at least bigger then 3 from the unity'

What does this mean?

Does it mean?

1. The ten's digit must be bigger than 3

2. The ten's digit must be 3 more than the unity

Where are you from? The english is very confusing.

[zachacham]

The correct programming here:

and for the guy who asked, I'm from Israel, and I'm sorry for my english.