James is 8 percent taller than John and wilson is 10 percent shorter than John. By what percentage is James taller than wilson?
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Answered by
5
let John is X
James =8+X
Wilson =X-10
therefore 8+X=X-10
X=10+8
X= 18
therefore James 18% toller then wilson
James =8+X
Wilson =X-10
therefore 8+X=X-10
X=10+8
X= 18
therefore James 18% toller then wilson
Kshiti78:
whts the answer
what happen kshiti
whts the correct answer for this question
18 % sry ....i m not read que. carefully
answer is 20%
sol for that answer
how it comes 20%
send me correct ans Rathod
I know the answer but i couldn't understand the steps. Equations:
james = 1.08john
w = 0.9john
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Note: john = w/0.9
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Substitute for john and solve for "james":
james = 1.08[w/0.9] = (1.08/0.9) = 1.2w
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Note: 1.2w = w + 0.20w
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Answer:::
James is 20% taller than Wilson
james = 1.08john
w = 0.9john
-----
Note: john = w/0.9
--------------------------------
Substitute for john and solve for "james":
james = 1.08[w/0.9] = (1.08/0.9) = 1.2w
=====
Note: 1.2w = w + 0.20w
-----
Answer:::
James is 20% taller than Wilson
When you do problems like these, using 100 is good advice...
Thus let's call John's height 100...
Then James is 108 and Wilson is 90.
The percentage that James is taller than Wilson is given by
(108-90)/90 = 18/90 = .2 = 20%
Thus let's call John's height 100...
Then James is 108 and Wilson is 90.
The percentage that James is taller than Wilson is given by
(108-90)/90 = 18/90 = .2 = 20%
Answered by
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john is 10 percent tall and james is 8percent tall from john which means 10+8=18 peecent tall james is 18 percent tall
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