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Due to inflation there were two demnd increases. After the secound, the price of a certin item becam 6 times the original. What percent increase of the secound if the first was 50%?

 Jul 3, 2020
 #1
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Let x be the original cost of the item and y be the second percent increase of its cost. 

 

In the first percent increase, the price of the item becomes 1.5x. Then in the second 1.5x * y=6x. y must be equal to 4.5x, which means it is 300%.

 Jul 3, 2020
 #2
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Thank you

QuestionsBug  Jul 3, 2020
 #3
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You're welcome.

gwenspooner85  Jul 3, 2020
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gwenspooner85: You got the right answer but made a typo. 1.5x * y =6x, y = 4 not 4.5. The easiest way to do it is to divide: 6x / 1.5x =4 - 1 * 100 = 300% increase over the first phase.

Guest Jul 3, 2020

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