Question: At a certain zoo, the ratio of sea lions to penguins is 4 to 11. If there are 84 more penguins than sea lions at the zoo, how many sea lions are there?

1. 24
2. 36
3. 48
4. 72
5. 132

Correct Answer: C

Solution and Explanation:

Approach Solution 1:
S:P= 4:11
or,11S= 4P
given, S + 84= P
or,4s + 336= 4P
or,4S + 336= 11S
or, 336= 7S
Or, S= 48

Approach Solution 2:
Let’s let 4x= the number of sea lions and 11x = the number of penguins. We can create the equation:
4x + 84= 11x
84= 7x
12= x
Thus, there are 4(12)= 48 sea lions in the zoo.

Approach Solution 3:
The ratio as mentioned= 4/11
also
sea lion + 84= penguins
Or,
4x+84= 11x
x=84/7= 12
number of sea lions= 12*4=48

“At a certain zoo, the ratio of sea lions to penguins is 4 to 11.”- is a topic of the GMAT Quantitative reasoning section of GMAT. This question has been taken from the book "GMAT Prep Plus 2022-2023.” To solve GMAT Problem Solving questions a student must have knowledge about a good amount of qualitative skills. GMAT Quant practice papers improve the mathematical knowledge of the candidates as it represents multiple sorts of quantitative problems.

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