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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
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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7 tháng 11 2021 lúc 16:27
There are 8 blue balls, 8 red balls and 6 green balls in a bag. At least how many balls should be drawn at random to ensure there are red balls?
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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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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 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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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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adam bought a number of ping-pong balls in a store in Texas, where a 5% sales tax is added to every purchase. If he didn't have to pay tax, he could have bought more 3 balls for the sam amount of money. How many balls did he buy
Fill in the gap with one suitable words
Enrico Rastelli
Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)........................number of objects up into the air and catching them (2)................dropping a single one. Rastelli was able to juggle(3)..............many as eight balls at the same time. However,(4).............made him a genius was his perfect style, rather(5)...................the quantity of objects he(6)..........juggl...
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Fill in the gap with one suitable words
Enrico Rastelli
Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)........................number of objects up into the air and catching them (2)................dropping a single one. Rastelli was able to juggle(3)..............many as eight balls at the same time. However,(4).............made him a genius was his perfect style, rather(5)...................the quantity of objects he(6)..........juggle.
Rastelli's contributions to juggling were many. He started using rubber balls(7).........of the cotton balls that were(8)...............use at the time.These rubber balls are now standard. It was Rastelli,too, who began the now commonly seen practice(9)..............throwing a ball into the air,and then catching(10)....................on a stick held in his mouth.
Enrico Rastelli was born into a circus family in Siberia in 1896. Although he spent some of his early years in Italy, it(11)...............in Russia that he acquired his juggling skills. It was not uncommon(12).............him to practise twelve hours a day, and this dedication was reflected in his astonishing performances. The degree of control shown(13)..............Enrico Rastelli has never been equalled.
Fill in the gap with one suitable words
Enrico Rastelli
Enrico Rastelli was probably the greatest juggler the world has ever known. Juggling involves throwing(1)....a.....number of objects up into the air and catching them (2).....without......dropping a single one. Rastelli was able to juggle(3)....as.....many as eight balls at the same time. However,(4)....what......made him a genius was his perfect style, rather(5).......than......the quantity of objects he(6)...could.....juggle.
Rastelli's contributions to juggling were many. He started using rubber balls(7)...instead....of the cotton balls that were(8)......in...use at the time.These rubber balls are now standard. It was Rastelli,too, who began the now commonly seen practice(9).....of.....throwing a ball into the air,and then catching(10)........it....on a stick held in his mouth.
Enrico Rastelli was born into a circus family in Siberia in 1896. Although he spent some of his early years in Italy, it(11)......was.......in Russia that he acquired his juggling skills. It was not uncommon(12).....for...him to practise twelve hours a day, and this dedication was reflected in his astonishing performances. The degree of control shown(13)....by......Enrico Rastelli has never been equalled.
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