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GRADE 9 - 10 Test 2

Giảng viên: Thầy Bá Phong

01:15:00

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Question 1 |

True: +3 False: -1

The average of four numbers is 9. What is the fourth number if three of the numbers are 5, 9 and 12?

Question 2 |

True: +3 False: -1

Which of the following numbers is the closest to the result of

0.01

0.1

100

Question 3 |

True: +3 False: -1

On a test consisting of 30 questions, Ruth had 50% more right answers than she had wrong answers. Each answer was either right or wrong. How many right answers did Ruth have, assuming she answered all questions?

Question 4 |

True: +3 False: -1

Iva marked eight points on a circle and named them by letters. Then she connected the points with a broken line with seven legs, as shown in the figure.

How many broken lines with seven legs connecting the eight points are there, such that reading the letters when moving along a broken line Iva can obtain the word KANGAROO?

Question 5 |

True: +3 False: -1

When the positive integer 𝑥 is divided by 6, the remainder is 3. What is the remainder when 3𝑥 divided by 6?

Question 6 |

True: +3 False: -1

Football fans were travelling to a game in 32 minibuses. There was an equal number of people in each of them. Eight minibuses broke down on the way and the fans from these buses got on the remaining ones. After that there were two more fans in every minibus. How many fans were travelling to the game?

144

192

256

384