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Mr Raju had some $2 notes and $5 notes in his wallet. The number of $2 notes is 3 times the number of $5 notes. After he spent 2/3 of his $2 notes, he had $70 left in his wallet. How much did he spend?

MaiaMitchell  Oct 3, 2015

Best Answer 

 #1
avatar+9722 
+10

Hallo MM

laugh

Omi67  Oct 3, 2015
 #1
avatar+9722 
+10
Best Answer

Hallo MM

laugh

Omi67  Oct 3, 2015
 #2
avatar+92367 
+5

Mr Raju had some $2 notes and $5 notes in his wallet. The number of $2 notes is 3 times the number of $5 notes. After he spent 2/3 of his $2 notes, he had $70 left in his wallet. How much did he spend?

 

Let x = the number of   $5 notes

And 3x = the number of $2 notes.........and after he spends 2/3 of these he has (1/3)(3x )   = x left

 

So

 

2x + 5x = 70

 

7x = 70

 

x = 10

 

So he spent    (2/3)(3x)($2) = (2/3)(30)*$2  = (20)*$2   = $40

 

Check;

 

He started  with  $5(10) + $2(30)  = $110 .......  and he spent $40  = $70 left

 

 

cool cool cool

CPhill  Oct 4, 2015
edited by CPhill  Oct 4, 2015

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