While surfing the Net, I came upon a sample admission test in math for the MEPhI (Moscow Engineering Physics Institute). As I was looking at those 5 problems, a profound sense of futility slowly rose from the pit of my stomach. But upon a closer examination I realized that the problem #2 I could solve and quickly enough.

Here is my English translation thereof. Enjoy.

2. If you multiply the first digit of a certain two-digit number by 4, the second digit by 6 and add the results, then the resulting sum is going to be 13 greater than the sum of the squares of those two digits.

Find such two-digit number.

That is the easiest (or second easiest) of the 5 problems. The other four I do not want to show here, as I find them unsuitable.

## Question

## Prime 15

While surfing the Net, I came upon a sample admission test in math for the MEPhI (Moscow Engineering Physics Institute). As I was looking at those 5 problems, a profound sense of futility slowly rose from the pit of my stomach. But upon a closer examination I realized that the problem #2 I could solve and quickly enough.

Here is my English translation thereof. Enjoy.

2.If you multiply the first digit of a certain two-digit number by 4, the second digit by 6 and add the results, then the resulting sum is going to be 13 greater than the sum of the squares of those two digits.Find such two-digit number.

That is the easiest (or second easiest) of the 5 problems. The other four I do not want to show here, as I find them unsuitable.

## Link to post

## Share on other sites

## 18 answers to this question

## Recommended Posts

## Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.