September 2018 1 15 Report

Proszę o pomoc z matmy po angielsku (chodzi mi o rozwiązanie a nie o przetłumaczenie na j.polski)

Decode it
Imran's bicycle lock has a code with four digits.
They are 1,4,7,8.

a) Can you tell what his code is,based on the following clues?

The first number is an odd number.
The third number is an even number
The second number is neither a prime nor a composite number
It is also the difference between the first and the third number

Z góry bardzo dziękuję za pomoc


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