- Submitted By: terence817
- Date Submitted: 10/31/2015 6:39 PM
- Category: Technology
- Words: 1071
- Page: 5

2014 Korea International

Mathematics Competition

21~26 July, 2014, Daejeon City, Korea

Invitational World Youth Mathematics Intercity Competition

Individual Contest

Time limit: 120 minutes

Instructions:

z Do not turn to the first page until you are told to do so.

z Remember to write down your team name, your name and contestant

number in the spaces indicated on the first page.

z The Individual Contest is composed of two sections with a total of

120 points.

z Section A consists of 12 questions in which blanks are to be filled in

and only ARABIC NUMERAL answers are required. For problems

involving more than one answer, points are given only when ALL

answers are correct. Each question is worth 5 points. There is no

penalty for a wrong answer.

z Section B consists of 3 problems of a computational nature, and the

solutions should include detailed explanations. Each problem is

worth 20 points, and partial credit may be awarded.

z You have a total of 120 minutes to complete the competition.

z No calculator, calculating device, electronic devices or protractor are

allowed.

z Answers must be in pencil or in blue or black ball point pen.

z All papers shall be collected at the end of this test.

English Version

Team:

Name:

No.:

Score:

For Juries Use Only

No.

Score

Score

1

2

3

4

5

Section A

6

7

8

9

10

11

12

Section B

1

2

3

Total

Sign by

Jury

Section A.

In this section, there are 12 questions. Fill in the correct answer in the space

provided at the end of each question. Each correct answer is worth 5 points.

1.

A two-digit number x is twice another two-digit number y. The sum of the digits

of x is equal to one of the digits of y and the difference between the digits of x is

equal to the other digit of y. What is the maximum value of y?

AnswerĈ

2.

What is the difference when 1234567891 × 1234567896 × 1234567898 is

subtracted from 1234567899 × 1234567894 ×...