標題:
數學問題（英文）(俾列（釋）和答案）(１條問題）
１）In a football competition , each team has to play 38 matches .For each match ,a team will get points according to following table. Match ： Win Draw Lose_________ _________________________Point(s)：３１０A team Rainbow wins 12 matches and loses 19 matches . The remaining... 顯示更多 １） In a football competition , each team has to play 38 matches .For each match ,a team will get points according to following table. Match ： Win Draw Lose _________ _________________________ Point(s)：３１０ A team Rainbow wins 12 matches and loses 19 matches . The remaining matches are draw .Find the points Rainbow get. 更新: ２） A man is going to cover a square floor with rectangular tiles of sides 14 cm and 18 cm .Find the least possible length of the side of the square floor. 更新 2: ３） A man is going to cover a square floor with rectangular tiles of sides 14 cm and 18 cm .Find the least possible length of the side of the square floor. 更新 3: ４) 108 sweets and 88 chocolates are to be shared among some children . If each child gets the same number of sweets and chocolates, how many sweets and chocolates each child gets at least?(Hint : Find the lagest number of children first!!) 更新 4: ５） The H.C.F. and L.C.M. of two numbers are 6 and 108 respectively . If the two numbers are 12 and X,find X>(Hint : X is a multiple of 6 and a factor of 108.)
最佳解答:
(1) Rainbow gets 3 x 12 + (0 x 19) + 1 x (38 - 12 - 19) = 36 + 7 = 43 points (2) 14 = 2 x 7 18 = 2 x 3 x 3 LCM of 14 & 18 is 2 x 3 x 3 x 7 = 126 Therefore the least possible lenght of the square floor is 126cm (3) same as (2) 14 = 2 x 7 18 = 2 x 3 x 3 LCM of 14 & 18 is 2 x 3 x 3 x 7 = 126 Therefore the least possible lenght of the square floor is 126cm 2007-08-22 12:04:30 補充： (4)108 = 2 x 2 x 3 x 3 x 388 = 2 x 2 x 2 x 11HCF = 2 x 2 = 4The largest no. of children = 4Therefore each children gets108 ÷4 = 27 sweets and88 ÷ 4 = 22 chocolates (5)HCF = 6 = 2 x 3LCM = 2 x 2 x 3 x 3 x 312 = 2 x 2 x 3X = 2 x 3 x 3 x 3 = 18
其他解答:
數學問題（英文）(俾列（釋）和答案）(１條問題）
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發問:１）In a football competition , each team has to play 38 matches .For each match ,a team will get points according to following table. Match ： Win Draw Lose_________ _________________________Point(s)：３１０A team Rainbow wins 12 matches and loses 19 matches . The remaining... 顯示更多 １） In a football competition , each team has to play 38 matches .For each match ,a team will get points according to following table. Match ： Win Draw Lose _________ _________________________ Point(s)：３１０ A team Rainbow wins 12 matches and loses 19 matches . The remaining matches are draw .Find the points Rainbow get. 更新: ２） A man is going to cover a square floor with rectangular tiles of sides 14 cm and 18 cm .Find the least possible length of the side of the square floor. 更新 2: ３） A man is going to cover a square floor with rectangular tiles of sides 14 cm and 18 cm .Find the least possible length of the side of the square floor. 更新 3: ４) 108 sweets and 88 chocolates are to be shared among some children . If each child gets the same number of sweets and chocolates, how many sweets and chocolates each child gets at least?(Hint : Find the lagest number of children first!!) 更新 4: ５） The H.C.F. and L.C.M. of two numbers are 6 and 108 respectively . If the two numbers are 12 and X,find X>(Hint : X is a multiple of 6 and a factor of 108.)
最佳解答:
(1) Rainbow gets 3 x 12 + (0 x 19) + 1 x (38 - 12 - 19) = 36 + 7 = 43 points (2) 14 = 2 x 7 18 = 2 x 3 x 3 LCM of 14 & 18 is 2 x 3 x 3 x 7 = 126 Therefore the least possible lenght of the square floor is 126cm (3) same as (2) 14 = 2 x 7 18 = 2 x 3 x 3 LCM of 14 & 18 is 2 x 3 x 3 x 7 = 126 Therefore the least possible lenght of the square floor is 126cm 2007-08-22 12:04:30 補充： (4)108 = 2 x 2 x 3 x 3 x 388 = 2 x 2 x 2 x 11HCF = 2 x 2 = 4The largest no. of children = 4Therefore each children gets108 ÷4 = 27 sweets and88 ÷ 4 = 22 chocolates (5)HCF = 6 = 2 x 3LCM = 2 x 2 x 3 x 3 x 312 = 2 x 2 x 3X = 2 x 3 x 3 x 3 = 18
其他解答:
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