Q. 48 Let A1, A2, A3, and A4 be four matrices of dimensions 10 x 5, 5 x 20, 20 x 10, and 10 x 5, respectively. The minimum number of scalar multiplications required to find the product A1A2A3A4 using the basic matrix multiplication method is
(A) 1500
(B) 2000
(C) 500
(D) 100
Answer: (A)
Explanation:
