Buzz
Solve exercise 3 on pages 36, 37 of Math Grade 4 workbook: What is the average number of meters of fabric sold by each shop?
Guidance for solving exercise 3 on pages 36, 37 of Math Grade 4 workbook
Problem:
A shop sold 120m of fabric on the first day, half the amount sold on the second day, and double the amount sold on the third day. What is the average number of meters of fabric sold by each shop?
Solution Method:
* Observation:
- Given problem:
+ On the first day: Sold 120 meters of fabric
+ On Day 2: Sold half the amount of fabric sold on the first day
+ On Day 3: Sold double the amount sold on the first day
- The problem requires: Find the average number of meters of fabric sold by the shop each day.
* Solution Approach:
- Step 1: Find the number of meters of fabric sold on Day 2 by the shop = Number of meters of fabric sold on Day 1 x 1/2
- Step 2: Find the number of meters of fabric sold on Day 3 by the shop = Number of meters of fabric sold on Day 1 x 2
- Step 3: Find the average number of meters of fabric sold by the shop each day = (number of meters of fabric sold on Day 1 + number of meters of fabric sold on Day 2 + number of meters of fabric sold on Day 3) : 3
Answer:
The number of meters of fabric sold by the shop on the second day is :
120 : 2 = 60 (meters)
The number of meters of fabric sold by the shop on the third day is :
120 x 2 = 240 (meters)
=> Average meters of fabric sold by the shop each day:
(120 + 60 + 240) : 3 = 140 (m)
Answer: 140 meters of fabric.
Mytour has just provided a solution for exercise 3 on pages 36 and 37 of the 4th-grade math workbook. Additionally, we offer solutions for Exercise 1 on pages 36 and 37 of the 4th-grade Math workbook and Exercise 2 on pages 36 and 37 of the 4th-grade Math workbook. Check out the guidance on solving exercises on pages 36 and 37 of the 4th-grade Math workbook to excel in 4th-grade math!
