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Guidance for solving exercise 3 on page 78 of Math 4 textbook
Problem: A train has 3 carriages, each carrying 14580 kg of cargo, and there are 6 other carriages, each carrying 13275 kg of cargo. What is the average weight each carriage carries?
Solution method: Step 1: Calculate the total number of train cars. Step 2: Calculate the total weight of goods that all cars can carry. Step 3: Calculate the average kilograms of goods carried per car.
Answer: Total train cars: 3 + 6 = 9 (train cars). All 9 cars can carry: 14,580 x 3 + 13,275 x 6 = 123,390 (kg). Average load per car: 123,390 ÷ 9 = 13,710 (kg). Answer: 13,710 (kg)
This is the solution to exercise 3 on page 78 of Math 4 textbook. Additionally, there are 3 other exercises: Solution to Exercise 1 on page 78 of Math 4 textbook, Solution to Exercise 2 on page 78 of Math 4 textbook, and Solution to Exercise 4 on page 78 of Math 4 textbook. Let's check out the solution to exercises on page 78 of Math 4 textbook to excel in 4th-grade math!
