a boat can carry a total weight of 400 kg if the people sitting on the boat where it is 358.1 kg if there scope one more passenger to fit in ?
Answers
Step-by-step explanation:
one son + all their belongings make the first trip across making sure its not over 80 kg.
son returns leaving behind their clothes.
two sons join together for the second trip to the other side
one son returns for the dad
on arrival dad lets the other son use the boat to pick up sibling
two sons together make the final trip crossing the river
They all put their clothes back on and live happily ever after.
Answer:
Let the two points on river both ends respectively = A , B
Let the total weight at point A of river:
F = Father = 80 kg
S1= Son 1 = 40 kg
S2= Son 2 = 40 kg
Forward Trip 1: Boat Trip from A to B Carrying weight 40kg+40kg:
40 kg + 40 kg A●=====>● B 40 kg + 40 kg
After completing 1st trip persons left at point A & B:
80 kg A●=====>● B 40 kg + 40 kg
Backward Trip 2: Boat Trip from B to A Carrying weight 40 kg:
A ● <=======● B 40 kg
After completion of backward trip persons at point A & B are:
40kg, 80kg A●======● B 40 kg
Forward Trip 3: Boat Trip from A to B Carrying weight 80 kg:
80 kg A ●======>● B 40 kg & 80 kg
After 3rd trip persons at point A & B
40kg A●======●B 80 kg, 40 kg
Backward Trip 4: Boat Trip from B to A Carrying weight 40 kg:
A ●<=======● B 40 kg
After completing backward trip 4, persons at both the points A & B
40 kg + 40 kg A ●=======● B 80 kg
Forward Trip 5: Boat Trip from A to B Carrying weight 40kg+40kg:
40 kg + 40 kg A● =====> ●B 40 kg, 40 kg ,80 kg.
Final: Nothing at A●====●B 40 kg + 40 kg + 80 kg
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