Answer:
12
Step-by-step explanation:
Answer:

Step-by-step explanation:
Distance for one way = 14 miles
The boat goes an average speed of 20 mph
The train goes 10 mph faster than the boat.
Speed of train = 20+10 = 30 kmph
Abdul takes the train into the park and the boat on his way back.
Time taken for going into park by train = 
= 
Time taken for going back by boat = 
= 
So, total time = 
Hence the round trip take 
I=prt
After one year
I=350×0.05×1=17.5
After two years
I=350×0.05×2=35
After three years
I=350×0.05×3=52.5
After four years
I=350×0.05×4=70