In a PE room, a basket contains some red, orange, yellow and green bean bags. How many students must the PE teacher send so that at least 2 students will draw 3 bags of the same colour combination? Each student is allowed to draw 3 bean bags
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3. Students in a primary school are either wearing blue, black or yellow cap. At least how many students are there to ensure there are 26 students wearing the same colour of cap?
A bag contains indentical balls of different colours.There are 12 red, 10 white, 8 yellow, 3 blue and 2 black balls.Without looking into the bag,John takes out the balls one by one.What is the least number of balls that John must take out from the bag in order to have at least 4 balls of the same colour?
Khi John lấy 5 quả bóng, kết quả có thể là 3 xanh và 2 đen. Chưa được 4 quả cùng màu.
Trong 3 loại đỏ, trắng, vàng còn lại, John phải lấy thêm ít nhất 10 quả nữa để chắc chắn có 4 quả cùng màu vì: 10 chia 3 bằng 3 dư 1. 4 quả ấy bao gồm 3 quả là Thương cộng 1 quả là Dư.
Vậy John phải lấy ít nhất 15 quả bóng để chắc chắn có 4 quả cùng màu.
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there are 27 blue,12 yellow and 42 black marbles in a box.Jack close his eyes and draw a marble from the box.at least how many marble must be put out ensure that there are six ball of the same colour
Để chắc chắn có 6 viên cùng màu phải lấy ít nhật là : 42 + 27 + 6 = 75 viên
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thanks, mình cũng vậy nhưng ko biết đúng sai thôi mà
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cho hỏi câu này với ạ:
there are 5 blues, 4 orange ball and 2 yellow balls in a bag. S will be blindfolded before she take the balls out, one at a time
how many balls must S take out in order to get 4 balls of the same colour?
( note that has to begin with 1 bule, 1 orange and 1 yellow ball )
cảm ơn các men
Choose the letter A, B, C or D to answer these following questionsWe have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our home...
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Choose the letter A, B, C or D to answer these following questions
We have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our homework. Our school bags are on the floor, and there is some food in the school bags. It’s now 5.30 pm. We are at home, but our teacher is at school. He often stays late to prepare for tomorrow’s lessons.
How many tables and desks are there in your classroom?
A. 24 tables and one desk
B. 24 tables for students and two desks for teacher
C. 20 tables and one desk
D. 25 tables and two desks
Đáp án: A
Giải thích: Dựa vào câu: “There are 24 tables for students and one desk for the teacher”.
Dịch: Có 24 cái bàn cho học sinh và 1 bàn cho giáo viên.
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Đáp án là A - 24 tables and one desk
Chúc bạn học tốt !
Choose the letter A, B, C or D to answer these following questionsWe have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our home...
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Choose the letter A, B, C or D to answer these following questions
We have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our homework. Our school bags are on the floor, and there is some food in the school bags. It’s now 5.30 pm. We are at home, but our teacher is at school. He often stays late to prepare for tomorrow’s lessons.
How many tables and desks are there in your classroom?
A. 24 tables and one desk
B. 24 tables for students and two desks for teacher
C. 20 tables and one desk
D. 25 tables and two desks
Đáp án: A
Giải thích: Dựa vào câu: “There are 24 tables for students and one desk for the teacher”.
Dịch: Có 24 cái bàn cho học sinh và 1 bàn cho giáo viên.
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Đáp án là A -24 tables and one desk
Chúc bạn học tốt !
There are 3 grey socks, 3 blue socks and 3 yellow socks in a drawer. How many socks must Alan take out from the drawer in a dark room before there is a pair of socks of the same colour?
There are 3 grey socks, 3 blue socks and 3 yellow socks in a drawer. How many socks must Alan take out from the drawer in a dark room before there is a pair of socks of the same colour?
Choose the letter A, B, C or D to answer these following questionsWe have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our home...
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Choose the letter A, B, C or D to answer these following questions
We have English lessons at Room 12. There are 24 tables for students and one desk for the teacher. On the walls, there are a lots of posters of England. There’s a cupboard at the front of the room and on the cupboard, there is a TV and DVD player. Sometimes we watch films. There are some bookshelves in the classroom. On the shelves, there are a lot of English books. Our books are on the teacher’s desk. He wants to look at our homework. Our school bags are on the floor, and there is some food in the school bags. It’s now 5.30 pm. We are at home, but our teacher is at school. He often stays late to prepare for tomorrow’s lessons.
What time is it now?
A. Half past five
B. A quarter to five
C. A quarter past five
D. Five fifteen
Đáp án: A
Giải thích: Dựa vào câu: “It’s now 5.30 pm”.
Dịch: Bây giờ đang là 5:30 chiều.
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