1. First, let's understand the problem. We know that the ratio of black to white counters is 7:9 and that there are 4 more white counters than black counters.

2. Let's represent the number of black counters as 7x and the number of white counters as 9x.

3. According to the problem, there are 4 more white counters than black counters. So, we can write the equation as 9x = 7x + 4.

4. To solve for x, we subtract 7x from both sides of the equation, which gives us 2x = 4.

5. Then, we divide both sides of the equation by 2 to solve for x, which gives us x = 2.

6. Now that we know x = 2, we can find the number of white counters by substituting x into the equation 9x, which gives us 9*2 = 18.

So, there are 18 white counters.

Question

1. First, let's understand the problem. We know that the ratio of black to white counters is 7:9 and that there are 4 more white counters than black counters.

2. Let's represent the number of black counters as 7x and the number of white counters as 9x.

3. According to the problem, there are 4 more white counters than black counters. So, we can write the equation as 9x = 7x + 4.

4. To solve for x, we subtract 7x from both sides of the equation, which gives us 2x = 4.

5. Then, we divide both sides of the equation by 2 to solve for x, which gives us x = 2.

6. Now that we know x = 2, we can find the number of white counters by substituting x into the equation 9x, which gives us 9*2 = 18.

So, there are 18 white counters.

Knowee AI · Accepted Answer

1. First, let's understand the problem. We know that the ratio of black to white counters is 7:9 and that there are 4 more white counters than black counters.

2. Let's represent the number of black counters as 7x and the number of white counters as 9x.

3. According to the problem, there are 4 more white counters than black counters. So, we can write the equation as 9x = 7x + 4.

4. To solve for x, we subtract 7x from both sides of the equation, which gives us 2x = 4.

5. Then, we divide both sides of the equation by 2 to solve for x, which gives us x = 2.

6. Now that we know x = 2, we can find the number of white counters by substituting x into the equation 9x, which gives us 9*2 = 18.

So, there are 18 white counters.

There are black and white counters in a bag in the ratio 7:9There are 4 more white counters than black counters.How many white counters are there?

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