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11 tháng 6 2016

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.

5 tháng 8 2016

7 balls

31 tháng 7 2016

The number of balls to get off to a 3 color is:
3 + 3 + 1 = 7 (balls)
Answer: 7 balls

6 tháng 12 2017

khoe tiếng anh à :)))

Gọi số bóng đỏ là a

số bóng xanh là b

ta có:

a = 5 x b

a = 4 x (b + 3)

suy ra: 5 x b = 4 x (b + 3)

5 x b = 4 x b + 12

b = 12.. Suy ra a = 60

Nhớ bấm   L I K E   cho mk nhá :))))

The number of ways is : \(\frac{9\cdot8\cdot7\cdot6\cdot5}{120}=126\) ( ways )

Ans:126 ways 

COMPLETE THE STORY WITH ONE WORD IN EACH GAP. HAVE YOU EVER HAD A REALLY BORING? When I was a student I did lots of different jobs during the summer vacation, ranging (1)....... picking fruit to working for a furniture removal company. Fruit picking is hard work, but at least you are outside and have the copany of other pickers. Probably the least pleasant job I had (2)....... working in the fridge of a butcher's shop where I (3)............ to sort pieces of chickens. But (4)............. a...
Đọc tiếp

COMPLETE THE STORY WITH ONE WORD IN EACH GAP.

HAVE YOU EVER HAD A REALLY BORING?

When I was a student I did lots of different jobs during the summer vacation, ranging (1)....... picking fruit to working for a furniture removal company. Fruit picking is hard work, but at least you are outside and have the copany of other pickers. Probably the least pleasant job I had (2)....... working in the fridge of a butcher's shop where I (3)............ to sort pieces of chickens. But (4)............. a doubt, the prize for the (5)............ boring job has to go to the one I had working for a sports equipment company. My task was to put six table tennis balls into boxes. They left me in a room (6)......... my own with a huge container of thousands of balls. I was stuck out (7).......... sight at the back of the storeroom without even (8)........ radio for company. A day in the room felt (9)........ a month. There is one funny thing I remember: there were supposed to be two speeds of ball: one fast and one that was slower for (10).......... experienced players. The things was, they were actually the same ball, they just went into different boxes!

AI GIỎI ANH GIÚP MÌNH VỚI Ạ!!!!!!!! MÌNH CẦN GẤP LẮM!!! CẢM ƠN RẤT NHIỀU Ạ!!!!

2
11 tháng 11 2019

1. and

2. was

3. had

4. without

5. most

6. on

7. of

8. having

9. as

10.the

12 tháng 11 2019

COMPLETE THE STORY WITH ONE WORD IN EACH GAP.

HAVE YOU EVER HAD A REALLY BORING?

When I was a student I did lots of different jobs during the summer vacation, ranging (1)...and... picking fruit to working for a furniture removal company. Fruit picking is hard work, but at least you are outside and have the copany of other pickers. Probably the least pleasant job I had (2)..was..... working in the fridge of a butcher's shop where I (3).....had....... to sort pieces of chickens. But (4).......without...... a doubt, the prize for the (5)....most........ boring job has to go to the one I had working for a sports equipment company. My task was to put six table tennis balls into boxes. They left me in a room (6)....on..... my own with a huge container of thousands of balls. I was stuck out (7)...of....... sight at the back of the storeroom without even (8)....having.... radio for company. A day in the room felt (9)...as..... a month. There is one funny thing I remember: there were supposed to be two speeds of ball: one fast and one that was slower for (10)...the....... experienced players. The things was, they were actually the same ball, they just went into different boxes!

AI GIỎI ANH GIÚP MÌNH VỚI Ạ!!!!!!!! MÌNH CẦN GẤP LẮM!!! CẢM ƠN RẤT NHIỀU Ạ!!!!

13 tháng 5 2020

17 balls

15 tháng 5 2020

17 balls  (k cho mik nha )

12 tháng 5 2020

 The largest number of balls the team can buy is:

        140 : 8 = 17 (balls) and (surplus 4)

So the largest number of balls the team can buy is: 17 balls

12 tháng 5 2020

The largest numball of balls the tem can buy:

140:8=17(balls)