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Problems based on Numbers Test 6

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Question : 20

Total: 40

In counting m coloured balls, some were found to be blue and some were found to white, it was found that 49 of the first 50 counted were blue. Thereafter 7 out of every 8 counted were blue. If, in all, 90% or more of the balls counted were blue, the maximum value of m is:

180
200
210
220

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