Question 1059395
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=&#8377;430000
3)After two years, a car will be worth 90% of 90% of what it is today. So:
450000 x .9 x .9=&#8377;364500. &#9786;&#9786;&#9786;&#9786;