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Thursday, October 19 2017 @ 03:47 AM CDT
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 NAN HUA PS CA1 MATH Q14
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By: 2000123 (offline)  Thursday, June 21 2012 @ 07:41 AM CDT (Read 815 times)  
2000123

Q14.My salary is 1/5 more than my sister but 20% less than my brother. If our total salary is $11100, what is my sister salary Question

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By: echeewh (offline)  Thursday, June 21 2012 @ 06:30 PM CDT  
echeewh

Hi there,

Following pls find the worked solution:

M : 1 1/5 = 6/5; S = 1
So M = 6u; S = 5u

M: 80% --> 6u
B: 100% --> (6 / 80) x 100 = (15/2)u

M : S : B
6 : 5 : (15/2)
12 : 10 : 15

Total = 12u + 10u + 15u --> 11100
37u --> 11100
1u --> $300
S = 10u --> 10 x 300 = $3000

==================================

Do let me know if this does not agree with the answerkey..

Cheers,
Edward

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