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 English Interview Questions (465) General Aptitude Interview Questions (1900) Puzzles Interview Questions (460)
Question
```the ratio of white balls to black balls is 1:2. if 9 balls
are added then the ratio of the balls become 2:4:3. find
the number of black balls. a) 12 b) 6 c)9 d)none```
Question Submitted By :: General-Aptitude
I also faced this Question!!     Answer Posted By

# 1
these are question tht are seem to be like it consumes
time. so dont see jus the question and run to the next .

ans. a) 12

if 9 balls are added then the ratio to the combination
becomes 2:4:3.

9 balls make the ratio 3 for grey balls in tht mixture.
so the factor is 9/3 = 3 (in tht mixture)

so the same factor has to be maintained through out the
ratio. so black balls is 4 * 3 = 12 and white balls is 2 *
3 = 6.

 Is This Answer Correct ? 15 Yes 2 No
Sabarish

# 2
how can grey balls come from nywhere? the ratio is only
given for two types of balls, then how come there is

 Is This Answer Correct ? 4 Yes 1 No
Sphinx

# 3
Wrong Question
 Is This Answer Correct ? 3 Yes 2 No
Sunil902

# 4
none

taken 2 white ball na next to take 4 black balls next 3 white balls going on

 Is This Answer Correct ? 0 Yes 0 No
Somasundari

# 5
the data is not correct
 Is This Answer Correct ? 3 Yes 4 No
Mukesh

# 6
 Is This Answer Correct ? 0 Yes 1 No
Venkat Stony

# 7
6
 Is This Answer Correct ? 1 Yes 3 No
Teja

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