Respuesta :

Answer:

15

Step-by-step explanation:

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AsnwEr:

  • Number of girls in class = 15

GivEn:

  • The ratio of no. of boys to no. of girls in a class is 4:5.
  • Number of boys in class = 12

To find:

  • Number of girls in class?

Solution:

☯ Let number of girls be x.

Given that,

  • The ratio of no. of boys to no. of girls in a class is 4:5.

Therefore,

→ 12/x = 4/5

→ x = 12 × 5/4

→ x = 60/4

→ x = 15

∴ Hence, number of girls in a class is 15.