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sum of two discount rate is 22%

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by krazy800 » Wed Oct 15, 2008 7:28 am
IMO B? OA PLZ..
Last edited by krazy800 on Wed Oct 15, 2008 7:34 am, edited 1 time in total.
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by ifthyder » Wed Oct 15, 2008 7:33 am
krazy800 wrote:IMO B.. OA PLZ..
explaination??
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by krazy800 » Wed Oct 15, 2008 7:40 am
let X be the total discount offered on Fox Jeans
Y be the discount offered on Pony Jeans

Therefore X+Y=22..........(1)

Also given the total amount of discount on 5 pairs of Jean is 9$

Discount (in $) on Fox Jeans ------- (3*15*X/100)
Discount in $ on Pony Jeans ---------(2*18*Y/100)

.45*X + .36*Y =9................(2)

Solving above equations u will get Y as 10%

Hope this helps..
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Re: sum of two discount rate is 22%

by sudhir3127 » Wed Oct 15, 2008 7:43 am
ifthyder wrote:explaination ??
Normal price = 3 x 15 + 2 x 18 = 81

Give

After discount 45x + 36y = 900 .......................................1

Given
x + y = 22 ....................................................................2

Solve 1 and 2 for y

y = 10%

hope that helps..
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Re: sum of two discount rate is 22%

by ifthyder » Wed Oct 15, 2008 8:36 am
sudhir3127 wrote:
ifthyder wrote:explaination ??
Normal price = 3 x 15 + 2 x 18 = 81

Give

After discount 45x + 36y = 900 .......................................1
how could you got 900 wasn't 90 or 900?
Given
x + y = 22 ....................................................................2

Solve 1 and 2 for y

y = 10%

hope that helps..
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by rohangupta83 » Thu Oct 16, 2008 2:19 am
imo B

y = 10

as explained by Sudhir3127 and Krazy800
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by raunekk » Thu Oct 16, 2008 3:21 am
imo: B
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