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Alvin spent 2/5 of his money and an additional $6 on text books and 1/3 of the remaining money and an additional $8 on comics. He had $32 left. How much money did Alvin have at first?

 

you heard the title. The answer is supposed to be $132 but I don't know how to get it. This is what I don't like about gauthmath. They mostly give me wrong answers.

 Aug 2, 2021
 #1
avatar+34316 
+1

spending 2/5 leaves 3/5         amount of money left = 3/5 x -6

 

now spend 1/3 of this and an add'l 8 this leaves   2/3 of the remaining amount - 8

                  2/3 ( 3/5x -6) - 8      and this = 32

 

2/3 ( 3/5 x - 6) - 8 = 32

6/15x - 4 -8 = 32

6/15 x= 44

x = 44 * 15/6 = original amount = 110 dollars 

 

Let's check    110 - 2/5(110) =  66 -6 = 60

 

  60- 1/3 * 60 = 40      subtract   8 more = 32    CHECK !

 Aug 2, 2021
 #2
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I said the answer is 132

Guest Aug 2, 2021
 #3
avatar+34316 
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I know what you said....but 132 is incorrect.....your answer book has a mistake cheeky

ElectricPavlov  Aug 2, 2021
 #4
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Sorry to interrupt but this is a Singapore math question type

Guest Aug 2, 2021

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