If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number
of years passed after last census, number of vehicles A per day for design, is
(A) P (1 + r)n
(B) P (1 - r)n
(C) P (1 + r)-n+5
(D) P (1 + r)5n
of years passed after last census, number of vehicles A per day for design, is
(A) P (1 + r)n
(B) P (1 - r)n
(C) P (1 + r)-n+5
(D) P (1 + r)5n