Imagine that a 10 × 10 grid has value 300 and that this value is divided evenly among the small squares. In other words, each small square is worth 3. Use a new grid for each part of this problem, and label each grid “Value : 300.” Shade 25% of the grid. What is 25% of 300? Compare the two answers

Solution:

Given, the figure represents a 10 × 10 grid with value 300.

This value is divided evenly among the small squares. In other words, each small square is worth 3.

Shade 25% of the grid.

We have to find 25% of 300 and compare two answers.

25% of the grid means (1/4)th part of the grid.

Total grid = 10 × 10 = 100

So, 25% of grid = (25/100) × 100 = 25

One square = 3

So, 25 squares worth = 25 × 3 = 75

Now, 25% of 300 = (25/100) × 300

= 25 × 3

= 75

On comparing both the answers, we observe that both are equal.

Therefore, 25% of the grid is 75.

✦ Try This: Imagine that a 9 × 9 grid has value 192 and that this value is divided evenly among the small squares. In other words, each small square is worth 2. Use a new grid for each part of this problem, and label each grid “Value : 192.” Shade 10% of the grid. What is 10% of 192? Compare the two answers.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 8

NCERT Exemplar Class 7 Maths Chapter 7 Problem 81 (a)

Imagine that a 10 × 10 grid has value 300 and that this value is divided evenly among the small squares. In other words, each small square is worth 3. Use a new grid for each part of this problem, and label each grid “Value : 300.” Shade 25% of the grid. What is 25% of 300? Compare the two answers

Summary:

Shade 25% of the grid and 25% of 300 is 75.

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