Question

a box contains cards 12 ball of which some are red in colour . if 6 more are red ball are in put in the box and a ball is drawn at randomly , the probability of drawing a red ball doubles than what is was before ,find the no of red balls in bag

Answer 1

12 red balls are there in total .

12 ball of unknown colour
6 balls red

if before it was also 6 ball so. 6+6=12. and 18/12
please brainliest my answer