Intelligent Math Puzzle – Challenge 79
In this great mind-blowing Math challenge, you need to use your logic skills to solve the problem. The answer is also provided.
![Intelligent Math Puzzle – Challenge 79](https://www.effortlessmath.com/wp-content/uploads/2020/04/Challenge-79-512x240.jpg)
Challenge:
![](https://www.effortlessmath.com/wp-content/uploads/2020/04/ju.png)
In the series above, what is the fifth fraction?
A- \(\frac{191}{480}\)
B- \(\frac{513}{897}\)
C- \(\frac{676}{1199}\)
D- \(\frac{683}{1195}\)
E- \(\frac{689}{1211}\)
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![](https://www.effortlessmath.com/wp-content/uploads/2020/04/answer.png)
The correct answer is D.
Find the pattern in the number series. Each numerator or denominator of the fraction is one less than four times the previous numerator or denominator.
3 → 11
3 (4) – 1 = 11
171 × 4 – 1 = 683
299 × 4 – 1 = 1195
The number fraction is:
![](https://www.effortlessmath.com/wp-content/uploads/2020/04/kk.png)
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