The binary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4).
-
A.
59 -
B.
19 -
C.
67 -
D.
38
Correct Answer: Option A
Explanation
(p ast q = pq + p + q)
(2 ast (3 ast 4) )
(3 ast 4 = 12 + 3 + 4 = 19)
(2 ast 19 = 38 + 2 + 19 = 59)