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[Help in Pascal] writing program with loop


Question

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!

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  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.

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