If p, q, r, s are distinct integers such that:
f(p, q, r, s) = max (p, q, r, s)
g(p, q, r, s) = min (p, q, r, s)
h(p, q, r, s) = remainder of (p × q) / (r × s) if (p × q) > (r × s) OR
remainder of (r × s) / (p × q) if (r × s) > (p × q)
Also a function fgh (p, q, r, s) =
f(p, q, r, s) × g(p, q, r, s) × h(p, q, r, s).
Also the same operation are valid with two variable functions
of the form f(p, q).
What is the value of fg(h(2, 5, 7, 3), 4, 6, 8)? (A) 6
(B) 7
(C) 8
(D) 9答案： (C)
解释：
The question asks value of fg (h(2, 5, 7, 3), 4, 6, 8)
We need to first find value of h(2, 5, 7, 3)
h is defined as
h(p, q, r, s) = remainder of (p × q) / (r × s) if (p × q) > (r × s)
remainder of (r × s) / (r × q) if (r × s) > (p × q)
h(2, 5, 7, 3) = remainder of (7 * 3) / (2 * 5) since 7*3 > 2*5
= 1
fg(1, 4, 6, 8) = f(1, 4, 6, 8) * g(1, 4, 6, 8)
= max(1, 4, 6, 8) * min(1, 4, 6, 8)
= 8 * 1
= 8这个问题的测验