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F.1 Maths

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唔該大家幫我打埋過程同答案!!1)The difference between two numbers is 5.If the smaller number is 2/3 of the greater number,find the greater number.2)$1000 is divided between Anna and Ben.If Ben receives less than twice as much as Anna by $200,how much does Anna receive?3)Wendy is 6 years old and her... 顯示更多 唔該大家幫我打埋過程同答案!! 1)The difference between two numbers is 5.If the smaller number is 2/3 of the greater number,find the greater number. 2)$1000 is divided between Anna and Ben.If Ben receives less than twice as much as Anna by $200,how much does Anna receive? 3)Wendy is 6 years old and her father is 46 years old now.After how many years will Wendy's age be1/5 of her father's age?

最佳解答:

1)let the greater number be x x-2/3x=5 1/3x=5 x=15 2) let Anna receive be x X+1/2x-200=1000 1.5x=1200 x=800 3)let X years will Wendy's age be1/5 of her father's age (6+x)/(46+x)=1/5 6+x =1/5 *(46+x) 6+x= (46+x)/5 30+5x=46+x 5x-x =46-30 4x =16 x=4

其他解答:

Ans 1. x-y=5...............(a) (2x)/3=y from (a) x-(2x)/3=5 x(1-2/3)=5 x/3=5 x=15 y=10 Ans 3. 5(6+x)=46+x 30+5x=46+x 4x=16 x=4 sorry I cannot solve 2.
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