Question : There are 222 red balls in a basket. A boy takes out 6 red balls from it and replaces them with 12 white balls. He continues to do so till all the red balls are replaced by white balls. Determine the number of white balls put in the basket.
Option 1: 444
Option 2: 111
Option 3: 333
Option 4: 222
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Correct Answer: 444
Solution : We have, The 6 red balls are replaced with 12 white balls. ⇒ 1 red ball = 2 white ball $\therefore$ 222 red balls = 2 × 222 = 444 white balls Hence, the correct answer is 444.
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