There are 14 girls and 15 boys at a party. Four more boys arrived and 2 girls left. How many people are at the party now?
Answer (2)
Calculate the new number of girls: 14 − 2 = 12 .
Calculate the new number of boys: 15 + 4 = 19 .
Calculate the total number of people: 12 + 19 = 31 .
The total number of people at the party now is 31 .
Explanation
Understanding the Problem We are given that there are initially 14 girls and 15 boys at a party. Then, 4 more boys arrive, and 2 girls leave. We need to find the total number of people, H, at the party after these changes.
Calculating the New Number of Girls First, let's calculate the new number of girls after 2 girls leave: g i r l s n e w = 14 − 2 = 12
Calculating the New Number of Boys Next, let's calculate the new number of boys after 4 more boys arrive: b oy s n e w = 15 + 4 = 19
Calculating the Total Number of People Now, we can calculate the total number of people at the party by adding the new number of girls and the new number of boys: H = g i r l s n e w + b oy s n e w = 12 + 19 = 31
Final Answer Therefore, the total number of people at the party now is 31.
Examples
Imagine you are organizing a school event and need to keep track of the number of attendees. Initially, you have a certain number of students registered, but some students might leave early, and others might join later. By using simple addition and subtraction, you can easily calculate the total number of students present at any given time. This helps in managing resources, ensuring safety, and making sure everyone is accounted for.
After two girls leave and four boys arrive at the party, the total number of people is calculated to be 31. This is determined by first adjusting the number of boys and girls and then adding them. Therefore, the total number of attendees now is 31.
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