Question

there are red, blue and white coloured balls in the bag in the ratio 4:9:7 if the bag contains 1000 balls then the sum of red and white ball is​

Answer 1

Answer:

let the ratio be x

So,

4x+9x+7x=1000

20x =1000

x=50

now,

red ball=4x=4×50=200

blue ball=9x=9×50=450

white ball=7x=7×50=350

now sum of red and white ball is

200+350=550

hope you will like this answer

Answer 2

Answer:

let the red ,blue and white balls are approximately in the bag are 4x,9x,and7x

so

4x+9x+7x =1000

20x=1000

x=1000/20

x=50

so the red. balls =50×4=200

and the white balls =50×7=350

Step-by-step explanation:

so the sum of red and white ball is= 200+350=550

Hope it helps you....