Question

70 males and 100 females are working in a firm. During one mass recruitment drive, an equal number of males and females are recruited and their ratio becomes 3:4. The total number of people working in the firm after recruitment is:   

Options

• 210

• 220

• 200

• 240

Answer 1

210

Explanation:

Let number of male recruited 'x' 

From the question,

`(70 + "x")/(100 + "x") = 3/4`

⇒ 280 + 4x = 300+ 3x  ⇒ x = 20 

Total number of people working in firm now

= 170 + 2x

= 170 + 2 x 20

= 170 + 40

= 210