How to subtract even numbers - GRE Quantitative Reasoning

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .

First, add the total number of passengers that got off BEFORE the fourth stop. Three plus three is six, so you know that you've lost six total passengers before the fourth stop. , so there are ten passengers remaining at the fourth stop, and that's how many get off there.

Since , must result in a positive whole number. The only answer that fits these requirements of being both positive and whole number is .

If it's simpler for you, you can split this problem into two parts: First, take away from , and you're left with . Then, take away from (you can even count backwards if necessary), and you'll be left with the final answer, .