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GRADE 9-10 Test 3

Giảng viên: Thầy Bá Phong

01:15:00

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Question 1 |

True: +3 False: -1

Which of the following numbers is closest to 20.15 × 51.02 ?

100

1000

10000

100000

1000000

Question 2 |

True: +3 False: -1

Mother did the laundry and hanged t-shirts in line on a clothing line. Then she asked her children to put a single sock between any two t-shirts. Now there are 29 pieces of clothing on the line. How many t-shirts are there on the line?

Question 3 |

True: +3 False: -1

The shaded part of the square with side aa is bounded by a semicircle and two quarter arcs. What is its area?

Question 4 |

True: +3 False: -1

Three sisters, Ann, Beth and Cindy, bought a bag of 30 cookies together. Each of them received 10 cookies. Ann paid 80 cents, Beth paid 50 cents and Cindy paid 20 cents. If they had divided the cookies proportionally to the price each paid, how many more cookies would Ann have received?

Question 5 |

True: +3 False: -1

Mister Hide wants to dig up a treasure that he buried in his garden years ago. He can only remember that he buried the treasure at least 5 m away from the hedge and at most 5 m from the trunk of the old pear tree. Which of the following pictures shows the region where Mister Hide should look for the treasure?

Question 6 |

True: +3 False: -1

There are 30 problems in the MathQ competition for pupils. Two points are scored for each correct answer. If a pupil omits to solve a problem, he/she gets 0 points on it. One point is lost by a pupil for each wrong answer. Mark answered 25 problems and got 5 points. How many wrong answers did he have?