Hướng dẫn trả lời câu hỏi

KSF 2019 - Problems PreEcolier (Class 9 & 10)

Giảng viên: Thầy Bá Phong

01:15:00

Submit

Question 1 |

True: +3 False: -1

The mean of two numbers is 2019. One of the numbers is 2021. What is the other number?

2017

2018

2020

2022

2023

Question 2 |

True: +3 False: -1

Which of the following has the largest value?

Question 3 |

True: +3 False: -1

A barber wants to write the word SHAVE on a board in such a way that a client looking in to the mirror reads the word correctly. How should the barber write it on the board?

Question 4 |

True: +3 False: -1

How many different sums of dots can you get by rolling three standard dice simultaneously?

Question 5 |

True: +3 False: -1

Five identical glasses are filled with water. Four of them contain the same amount of water. Which one contains a different amount?

Question 6 |

True: +3 False: -1

A park has five gates. Monica wants to enter through one gate and to exit through a different one. In how many ways can she enter and exit the park?