We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
91
1
avatar

https://vle.mathswatch.co.uk/images/questions/question15876.png

 Feb 3, 2019

Best Answer 

 #1
avatar+18492 
+1

1/15   chance of eclair    

1/15  =   3 / (3 +  2x+6  + x)

1/15 = 3/(3x+9)     cross multiply

3x+9 = 45

x = 12

 

then the number of humbugs = 2x+6 = 2(12) + 6 = 30 humbugs

 

Prob of humbug   =   30 humbugs /(total sweets)

30 / ( 3+ 30 +12) = 30/45 = 2/3 prob of humbug

 Feb 3, 2019
 #1
avatar+18492 
+1
Best Answer

1/15   chance of eclair    

1/15  =   3 / (3 +  2x+6  + x)

1/15 = 3/(3x+9)     cross multiply

3x+9 = 45

x = 12

 

then the number of humbugs = 2x+6 = 2(12) + 6 = 30 humbugs

 

Prob of humbug   =   30 humbugs /(total sweets)

30 / ( 3+ 30 +12) = 30/45 = 2/3 prob of humbug

ElectricPavlov Feb 3, 2019

19 Online Users

avatar
avatar