If pqr = 1 then 11+p+q-1+11+q+r-1+11+r+p-1 is equivalent to
Explanation:
∵ pqr = 1
Case 1:
Let p = 2/3, q = 3/2 and r = 1
Substituting the values of p, q, r, we get,
11+p+q-1+11+q+r-1+11+r+p-1=37+27+27=1
Case 2:
Let p = 1, q = 1 and r = 1
11+p+q-1+11+q+r-1+11+r+p-1=13+13+13=1
Hence, option (c).
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