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Guidance on solving Exercise 4 Pages 16, 17 Math 5 Workbook
Problem Statement:
Circle the letter before the correct answer:
A rectangular piece of land with dimensions as shown below.
After digging a pond and constructing a house, the remaining area of the land is:
A. 180 m2 B. 1400 m2
C. 1800 m2 D. 2000 m2
Solution Method:
+ The width of the land piece is divided into 4 equal parts, each part being 10m, so the length is 10 x 4 =40m
+ The length of the land piece is divided into 5 equal parts, each part being 10m, so the length is 10 x 5 =50m
+ The width of the house is 10m (as it constitutes 1 part)
+ The length of the house is divided into 2 equal parts, each part being 10m, so the length is 10 x 2 =20m
+ The length and width of the pond are both 20m
Calculate the area of the land, house, and pond: Multiply the length by the width
The remaining land area will be equal to the land area minus the house area and the pond area
Answer:
The length of the land is 50m. The width of the land is 40m. The land area is: 50 x 40 = 2000 m2
- The length of the house is 20m. The width of the house is 10m. The house area is: 20 x 10 = 200 m2
- The square pond has a side length of 20m. The area of the pond is: 20 x 20 = 400 m2
- The area of the remaining land is: 2000 - (200 + 400) = 1400 m2
=>B is the correct answer
Here is the solution guide for Exercise 4 Pages 16, 17 Math 5 Textbook. Additionally, there are 3 other exercises: Solving Exercise 1 Pages 16, 17 Math 5 Textbook, Solving Exercise 2 Pages 16, 17 Math 5 Textbook, and Solving Exercise 3 Pages 16, 17 Math 5 Textbook. Let's check the solution guide for exercises on pages 16, 17 Math 5 to learn math well in grade 5.
