How can you put 55 balls into 10 boxes. So that each box contains a different number of balls.
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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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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
The number of balls to get off to a 3 color is:
3 + 3 + 1 = 7 (balls)
Answer: 7 balls
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an appliance shop orders 24 boxes of small electric fans ( where all boxes contain the same number of small fans) and 25 boxes of bigger electric fans ( where all boxes also contain the same number of bì fans). The total number of fans ordered is 1200. How many fans are there in each box that contains small fans
There are a number of balls not more than 80 tablets,in which the number of red balls is 5 times the number of green balls.If you add 3 more green balls then the red ball numberis 4 times higher than green balls.At firt,how many red balls?How many green balls? có nghĩa là Có một số quả bóng không quá 80 viên, trong đó số quả bóng màu đỏ là gấp 5 lần số quả bóng màu xanh lá cây. Nếu bạn thêm 3 quả bóng xanh thì quả bóng màu đỏ số 4 lần cao hơn quả bóng xanh. có bao nhiêu quả bóng màu đỏ?
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There are a number of balls not more than 80 tablets,in which the number of red balls is 5 times the number of green balls.If you add 3 more green balls then the red ball numberis 4 times higher than green balls.At firt,how many red balls?How many green balls?
có nghĩa là
Có một số quả bóng không quá 80 viên, trong đó số quả bóng màu đỏ là gấp 5 lần số quả bóng màu xanh lá cây. Nếu bạn thêm 3 quả bóng xanh thì quả bóng màu đỏ số 4 lần cao hơn quả bóng xanh. có bao nhiêu quả bóng màu đỏ?
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 :))))
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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
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!!!!
Peter had 12 boxes of 30 balls. He lost 13 balls. How many balls does he have now?
: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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