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. Challenge:

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- $$\frac{689}{1211}$$

The Absolute Best Book to challenge your Smart Student!

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:

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