Highway Engineering - Engineering

Q1:

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

ANS:A - P (1 + r)n

According to me, A is the correct answer.