Correct Answer - Option 4 : 3195
Given that:
Literate people = 25%
Total population = 100%
Then, illiterate people = (100 - 25) = 75%
Calculations:
Illiterate people = 75% of 4260
= 75/100 × 4260
= 3/4 × 4260 = 3195
∴ The number of illiterate people is 3195.