Difference between revisions of "2024 AMC 8 Problems/Problem 12"

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(Problem)
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==Problem==
 
 
Rohan keeps a total of 90 guppies in 4 fish tanks.
 
Rohan keeps a total of 90 guppies in 4 fish tanks.
  
    <math>\bullet</math> There is 1 more guppy in the 2nd tank than in the 1st tank.
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*There is 1 more guppy in the 2nd tank than in the 1st tank.
    <math>\bullet</math> There are 2 more guppies in the 3rd tank than in the 2nd tank.
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*There are 2 more guppies in the 3rd tank than in the 2nd tank.
    <math>\bullet</math> There are 3 more guppies in the 4th tank than in the 3rd tank.
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*There are 3 more guppies in the 4th tank than in the 3rd tank.
  
 
How many guppies are in the 4th tank?
 
How many guppies are in the 4th tank?

Revision as of 14:25, 25 January 2024

Rohan keeps a total of 90 guppies in 4 fish tanks.

  • There is 1 more guppy in the 2nd tank than in the 1st tank.
  • There are 2 more guppies in the 3rd tank than in the 2nd tank.
  • There are 3 more guppies in the 4th tank than in the 3rd tank.

How many guppies are in the 4th tank?

$\textbf{(A)}\ 20 \qquad \textbf{(B)}\ 21 \qquad \textbf{(C)}\ 23 \qquad \textbf{(D)}\ 24 \qquad \textbf{(E)}\ 26$

Solution 1