Buzz
Step-by-step solution for Exercise 3 on Page 54 of Math 5 Textbook Practice
Problem:
Three watermelons weigh 14.5 kg. The first one weighs 4.8 kg, and the second one is 1.2 kg lighter than the first. What is the weight of the third watermelon in kilograms?
Solution Method:
* Problem Summary:
Total weight of 3 watermelons: 14.5 kg
Weight of melon I: 4.8 kg
Melon II lighter than I: 1.2 kg
Weight of melon III: ? kg
* Solution Approach:
- First, find the weight of melon II by subtracting the weight of melon I from the weight difference between melon II and I
- Second, find the total weight of the first two melons by adding the weight of melon I (known) to the weight of melon II (just found)
- Finally, determine the weight of melon III by subtracting the total weight of all three melons from the weight of the first two melons (just found).
Answer:
Creating a Diagram:
Weight of the Second Melon:
4.8 - 1.2 = 3.6 (kg)
Combined weight of the first two melons:
4.8 + 3.6 = 8.4 (kg)
Weight of the third melon:
After some calculations, the weight difference is 6.1 kilograms.
The answer is 6.1 kg.
Check out the solutions for exercises 1, 2, and 4 on page 54 of the Math 5 workbook. Learn how to solve these problems effectively to excel in your 5th-grade math!
