SOLUTION: 1)Jhon's income is 20% more than that of Mr Thomas . How much percent is the income of Mr Thomas less than that of John. 😰😰😰😰 2)The value of machi

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Question 1059395: 1)Jhon's income is 20% more than that of Mr Thomas . How much percent is the income of Mr Thomas less than that of John.
😰😰😰😰
2)The value of machine depreciates 10% every year . If its present value is₹387000 ,what was its value 1 year ago
😱😱😱😱😱😱😱
3)The value of a car decreases annually by 10%. If its present population is 450000 ,what will be its value after 2 years

Answer by jorel555(1290)   (Show Source): You can put this solution on YOUR website!
1) If Jhon's income is 20% more than Mr. Thomas, then Mr.Thomas's income is 1/(1+20%) of Jhon's, or 83.3333% of Jhon's.
2)If the value of a machine depreciates 10% a year,then it's current value is 90% of what it was a year ago. Let n be the value of the machine a year ago. Then:
.9n=387000
n=387000/.9=₹430000
3)After two years, a car will be worth 90% of 90% of what it is today. So:
450000 x .9 x .9=₹364500. ☺☺☺☺

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