p, q and r are three positive integers satisfying p< q< r, such that q is the arithmetic mean of p and r.(adsbygoogle = window.adsbygoogle || []).push({});

Determine all possible triplet(s) (p, q, r) that satisfy both the cryptarithmetic equations, where each of the capital letters denotes a different decimal digit from 0 to 9 and, none of T and D can be zero.

r^{4}– q^{4}= TELL, and:

q^{4 }– p^{4}= DEAL.

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# Tell and deal puzzle

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