Caroline had 400 stamps in her collection. 1/10
th of them were Indian stamp. Of the remaining, 1/ 3 were Europe, and 100 stamps were from Africa. The rest were from United states of America. How many American stamps were there?
1/10 of 400 is 40,
So now you're down to 360 stamps.
Now you take the next steps.
Let's break down the information provided step-by-step:
Caroline had 400 stamps in her collection.
1/10th of them were Indian stamps.
Remaining stamps = 400 - (1/10)*400 = 400 - 40 = 360 stamps.
Of the remaining, 1/3 were Europe stamps.
Europe stamps = (1/3)*360 = 120 stamps.
100 stamps were from Africa.
The rest were from United States of America.
To find the number of American stamps, we need to subtract the total number of stamps from the sum of Indian, Europe, and Africa stamps.
Total stamps from Indian, Europe, and Africa = Indian stamps + Europe stamps + Africa stamps
= (1/10)*400 + (1/3)*360 + 100
= 40 + 120 + 100
= 260 stamps.
American stamps = Total stamps - (Indian, Europe, Africa stamps)
= 400 - 260
= 140 stamps.
Therefore, there were 140 American stamps in Caroline's collection.
To find out how many American stamps Caroline had in her collection, we need to subtract the number of stamps from other countries from the total number of stamps she had. Let's break the problem down step by step:
1. First, we know that 1/10th of Caroline's stamps were Indian stamps. So, we need to calculate the number of Indian stamps:
Number of Indian stamps = (1/10) * 400 = 40 stamps
2. Next, we need to find the number of stamps that were not Indian stamps. We can do this by subtracting the number of Indian stamps from the total number of stamps:
Number of stamps that were not Indian = 400 - 40 = 360 stamps
3. We know that 1/3rd of the remaining stamps were European stamps. So, we can calculate the number of European stamps:
Number of European stamps = (1/3) * 360 = 120 stamps
4. We are then told that there were 100 stamps from Africa. Therefore, if we subtract the number of European stamps and African stamps from the number of stamps that were not Indian, we can find the number of American stamps:
Number of American stamps = Number of stamps that were not Indian - Number of European stamps - Number of African stamps
= 360 - 120 - 100 = 140 stamps
So, Caroline had 140 American stamps in her collection.