[신나는 공부]Let＇s Think! 영어사고력 문제

■ 응모문제 ■

In the following calendar, the sum of the four numbers in the purple square area is 24. Suppose you have chosen another square area on this calendar. If the sum of all the 4 numbers in that area is 92, what is the smallest number among them?

〈Tip!〉

sum → 합

square → 정사각형

Suppose∼ →∼라고 가정해보자

영역 안의 숫자 사이에 차이(difference)가 얼마인지 주목합시다.

■ 도전! 하나 ■

You are about to play a game according to the rules below. If you are to win this game, how many balls do you have to take to start off the game? Answer the question and explain why.

- There are two balls on plate A and three on plate B.

- Two people take turns taking the balls. How many you take each time does not count. But you can only take the balls from either one of the plates.

- Anyone who finds no balls left on the plates for him/her to take loses.

〈Tip!〉

If you are to win this game

→ 이 게임에서 반드시 이기려면

take turns taking the balls

→ 번갈아가며 공을 가져간다

anyone who finds no balls left to take

→ 가져갈 공이 없는 사람

마지막에 반드시 이기는 상황을 거꾸로 생각해봅시다.

■ 도전! 둘 ■

The different symbols represent different numbers in the following calculation. What does ☆ represent?

〈Tip!〉

represent

→ 나타내다

◎ 는 반드시 어떤 숫자가 되어야 할지 생각해 봅시다.

■ 도전! 셋 ■

June, Hee-jae, Jeong-seo and Alex are posing for a group photo wearing different colors of clothes. Reading the following condition, guess the gender and the color of the clothes of each person.

1) They are each wearing red, yellow, blue, and black.

2) Two of them are females.

3) Hee-jae is the son of the person wearing yellow.

4) The person wearing yellow is the son of the person wearing blue.

5) Jeong-seo is not a female.

6) Among Alex and the person wearing black are a brother and his sister.

7) June is not wearing red.

〈Tip!〉

gender → 성별

성별을 판별하는 일을 먼저 해봅시다.

두 가지 조건을 동시에 만족하는 결과를 찾기 위해서는 행과 열이 있는 표를 사용하는 것이 쉽습니다.

■ 도전! 넷 ■

You fold a square-shaped paper in the following way. If you cut the paper along the diagonal line as seen in the last picture, how many pieces of paper would that produce?

〈Tip!〉

cut ∼ along- → -를 따라 ∼을 자르다

diagonal → 대각선의

produce → 생성하다

가장 마지막의 종이를 머릿속에서 천천히 펼쳐봅시다. 어떤 부분이 잘릴지 그 위에 그려봅시다.

■ 도전! 다섯 ■

An alligator at a zoo escaped the cage and took a baby away from a mom who was standing among the spectators. Seeing the mom begging for him to give the baby back to her, the alligator suggested the following condition: “If you can guess whether I will eat him alive or let him go, I’ll let him go.” After a while, the alligator let the baby go safe and sound. What should the mom have said to the alligator?

〈Tip!〉

escape → 도망치다

standing among the spectators

→ 구경꾼 사이에 서 있는

seeing the mom begging∼

→ ∼라고 애원하는 엄마를 보고

whether I will eat him alive or let him go

→ 내가 아이를 잡아먹을지 보내줄지

After a while → 잠시 후

safe and sound →무사히

What should the mom have said

→ 엄마가 과연 무엇이라고 했을까