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?
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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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Xem thêm câu trả lời
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 9 yellow balls, 5 blue balls and 4 red balls in a bag. Tim will be blindfolded before she takes the balls out, one at the time. How many balls must Tim take out in order to get 5 balls of the same color?
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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?
Đọc tiếp
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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giúp mình với
1.is/of/in/there/a/tree/house/my/front/.
2.is/fence/around/there/a/house/her/.
3.balls/his/where/are/?//-are/they/under/chairr/the/.
4.is/coat/my/where/?//-on/wall/it/is/the/.
5.are/frour/chair/near/table/the/there/.
6.cat/a/the/chair/is/behind/there/.
7.a/is/living room/there/in/house/my/.
8.seventy/grandfather/is/years/old/my/.
9.is/gate/front/in/of/there/a/house/my/.
10.bed/the/is/where/?//-is/in/it/bedroom/the/.
There is a tree in front of my house
There is a fence around her house
Where are his balls? They are under the chair
Where is my coat? It is con the wall
There are four chairs near the table
There is a cat behind the chair
There is a living room in my house
My grandfather is seventy years old
There is a gate in front of my house
Where is the bed? It is in the bedroom
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There is a tree in front of my house
There is a fence around her house
Where are his balls?
- They are under the chair
Where is my coat?
- It is on the wall
There are four chairs near the table
There is a cat behind the chair
There is a living room in the house
My grandfather is seventy years old
There is a gate in front of my house
Where is the bed?
− It is in the bedroom
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thế bài này thì sao
1. The posters are in my bag
=> ........................................
2.I’m OK, thank you.
=>...............................
3.The shirt is brown.
=>.............................
4.The picture is on the wall
=>........................................
5.Yes, there is a living room
=>.........................................
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On a Christmas tree, there are 45 glass stars and 26 golden balls. Each glass star costs 4 dollars while a golden ball costs 3 more dollars than a glass star. What is the total cost of the glass stars and golden balls?
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
On a Christmas tree, there are 45 glass stars and 26 golden balls. Each glass star costs 4 dollars while a golden ball costs 3 more dollars than a glass star. What is the total cost of the glass stars and golden balls?