Explanation:

- Total voters: 100% of the constituency.

- Male voters: 60% of voters.

- Female voters: Remaining 40% of voters.

- Illiterate males: 40% of male voters.

- Literate females: 25% of female voters.

Let's calculate the numbers for each group:

- Illiterate males: 60% of voters are males, and out of that, 40% are illiterate.

- Illiterate males = 0.6 * 0.4 = 0.24 or 24% of the total voters.

- Literate females: 40% of voters are females, and out of that, 25% are literate.

- Literate females = 0.4 * 0.25 = 0.10 or 10% of the total voters.

Comparing the two:

- The number of illiterate males (24%) is greater than the number of literate females (10%).

- Percentage difference:

- ((24% - 10%) / 10%) * 100% = 140%

- The correct option is:

- Option 3: 140%

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