1. Anurdha got a discount of 5% on a dress and she paid Rs760 for it.What was the original price of the dress

 2.A total of 36000 candidates appeared for the mathmetics olympiad examination.Of them,40% were girls and the remaining were boys.If 15% boys and 10% of girls got prizes ,find the percentage of student who got prizes.                                 want an ans from an exxxxxxxpert.........              

 1) Let The CP Be x

x-5/100*x = 760

95x/100 = 760

x/100 = 8

x = Rs 800

2)Let The Number Of Students Be x

Sorry I Didn 't Read That The Total Number Of Students r Given

Number Of Girls = 2*3600/5 = 1440

Number of boys = 3*360/5 = 2160

Number Of Boys who got the prize = 15/100*2160 = 324

Number of girls who got the prize = 10/100*1440 = 144

Total Students Who got the prize = 324+144 = 468

Percentage of students who got the prize = 468/3600*100 = 13%

  • 1

 100% - 5%= 95%                

95%=760

so, 100%=   95x/100 =760

19x/20 = 760

19x = 15200

x =800

  • 2

 1) Let The CP Be x 

x-5/100*x = 760

95x/100 = 760

x/100 = 8

x = Rs  800

2)Let The Number Of Students Be x

Number Of girls = 40/100*x = 2x/5

Number Of Boys = 60/100*x = 3x/5

Number Of Girls Who Got The Prize = 10/100*2x/5 = 2x/50  = x/25

Number Of Boys Who Got The Prize = 15/100*3x/5 = 3/20*3x/5 = 9x/100

Total Students Who Got The Prize = x/25+9x/100 = 4x+9x/100 = 13x/100

Percentage Of Students Who Got The Prizes = 13x/100  / x  *100 = 13x/100*1/x*100 = 13%

  • 2

1) Let The CP Be x

x-5/100*x = 760

95x/100 = 760

x/100 = 8

x = Rs 800

2)Let The Number Of Students Be x

Sorry I Didn't Read That The Total Number Of Students r Given 

Number Of Girls = 2*3600/5 = 1440

Number of boys = 3*3600/5 = 2160

Number Of Boys who got the prize = 15/100*2160 = 324

Number of girls who got the prize = 10/100*1440 = 144

Total Students Who got the prize = 324+144 = 468

Percentage of students who got the prize = 468/36000*100 = 1.3%

  • -2

 second answer is wrong i took total students = 3600 but first and third r absolutely correct

  • -2
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