A box contains 12 balls of which some are red in colour. If 6 more red balls are put in
the box and a ball is drawn at random, the probability of drawing a red ball doubles
than what it was before. Find the number of red balls in the bag.
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the total num of red balls is 6
let no of red balls be x
then probability will be x/12
ATQ- x+6/12=2x/12
x=6
let no of red balls be x
then probability will be x/12
ATQ- x+6/12=2x/12
x=6
anandsharma9982:
yes
tell me the answer
done
got it...
no i did not understand
why you added 2x/12
huh
and in question is there x/12
cause the probability doubles
tell me ur age and class
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