stephanie8438
stephanie8438 stephanie8438
  • 15-07-2020
  • Mathematics
contestada

The ratio of boys to girls in a class of
45 pupils is 2:7. How many girls are
there in the dass?
(a) 35
(b) 20
(c) 18
(d) 15
le) 10​

Respuesta :

Stephen46
Stephen46 Stephen46
  • 15-07-2020

Answer:

The answer is option A.

35.

Step-by-step explanation:

To find the number of girls in the class we must first find the total parts

That's

2 + 7 = 9

In the ratio 7 correspond to girls so the number of girls in the class are

7/9 × 45

= 7 × 5

= 35

Hope this helps you

Answer Link

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