Correct Answer - Option 1 : 1176
Given:
Percentage of boys = 70%
Number of girls = 504
Calculations:
Let the total students be 100x.
Number of boys = 100x × 70% = 70x
Number of girls = 100x - 70x
⇒ 30x = 504
⇒ x = 16.8
Number of boys = 70x
⇒ 70 × 16.8
⇒ 1176
∴ The number of boys is 1176.