Question

A trumpet vine is currently 16 inches tall planted next to a 4-foot fence. the trumpet vine grows at an average rate of 1/2 inch per day. at that rate, how many days will it take the vine to grow to the top of the fence?

ANSWERS AVALABLE
A, 32 DAYS C, 96 DAYS
B,64 DAYS D, 63 1/2 DAYS

Answer 1

current height+amount grown=height of fence
16in+amount grown=4ft
convert 4ft to inches, 12 in per fot, 4*12=48

amount grown==number of days times amount grown per day
amount grown=x times 1/2

16+1/2x=48
minus 16 both sides
1/2x=32
times 2/1 both sides
x= 64

answer is B, 64 days