Question

एक संगीत विद्यालय में70%विद्यार्थि लड़के है यदि लड़कियों की संख्या255 है तो लड़को की सख्या कितनी है​

Answer 1

Answer:

number of boys = 595

Step-by-step explanation:

let total number of students be x

percentage of boys = 70%

number of girl students = 255

x - 70% x = 225

$x - \frac{70x}{100} = 255 \\ x - \frac{7x}{10} = 255 \\ \frac{10x - 7x}{10} = 255 \\ 3x = 255 \times 10 \\ x = \frac{255 \times 10}{3} \\ x = 85 \times 10 \\ x = 850$

the total number of students are = 850

number of boys = total students - number of girls

= 850 - 255

= 595

therefore the number of boys = 595

Hope you get your answer