A bag contains a total of 15 balls of 5 different colours .Each colours has a unique number of balls in the bag.What is the least number of ball to be picked (without looking) to ensure 3 different coloured ball are picked
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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 9 different balls in a bag. Find the number of way(s) to pick 5 balls from the bag and arranged them in a row. (Different orders are considered different ways)
The number of ways is : \(\frac{9\cdot8\cdot7\cdot6\cdot5}{120}=126\) ( ways )
Ans:126 ways
There are some balls in a bag. The remainder is 1 when groups of 3 balls are removed. The remainder is 2 when groups of 5 or 7 balls are removed. What is the smallest possible number of balls in the bag?
Có một số quả bóng trong túi. Phần còn lại là 1 khi nhóm 3 quả bóng được lấy ra. Phần còn lại là 2 khi các nhóm 5 hoặc 7 quả bóng bị loại bỏ. Số lượng quả bóng nhỏ nhất có thể có trong túi là bao nhiêu?
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:A football team has $140 to buy balls. Once ball costs $8. What is the largest number of balls the team can buy?
17 balls (k cho mik nha )
A football team has $140 to buy balls. Once ball
costs $8. What is the largest number of balls the team can buy?
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
The largest numball of balls the tem can buy:
140:8=17(balls)
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A team has $121 to buy balls. 1 ball costs $6. the tehat is the largesam gets every fifth ball for half-price. what is the largest number of balls the team can obtain?
câu này thì bạn sang https://mathu.com/ hỏi nhé
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12 tháng 11 2021 lúc 17:08
How can you put 55 balls into 10 boxes. So that each box contains a different number of balls.
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 butchers shop where I (3)............ to sort pieces of chickens. But (4)............. a do...
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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!!!!
1. and
2. was
3. had
4. without
5. most
6. on
7. of
8. having
9. as
10.the
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!!!!
Pat has a number of counters to place into the cells of a 3 x 3 grid. She may place any number of counters in each cell or leave some of the cells empty. She then finds the number of counters in each row and each column. Pat is trying to place counters in such a way that these six totals are all different.
What is the smallest total number of counters that Pat can use?