If $$ {81 343 625}={3^{p}} {7^{q}} {5^{r}}$$ then find out the – McqOptions

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1.	If $$ {81 343 625}={3^{p}} {7^{q}} {5^{r}}$$ then find out the value of $$ { sqrt{(p-r)^{2}+q^{2}}}$$.
A.	5
B.	3
C.	7
D.	None of these
Answer» C. 7

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