Answered


If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?
A. P
B. Q
C. R
D. S
E. T

Answer :

pqr = 1
so p,r must not be 0 
so in rst = 0
r can't be zero so st = 0 so s= 0 and we see it also satisfies  spr = 0

SO D) S

Other Questions