Study the following graph carefully to answer the given questions.
Number of candidates who qualified in a given competitive examination from 6 states during two given years :
What is the average number of candidates who qualified in the given competitive exam from states Q, S, T and U in 2004?
Total number of candidates who qualified in the given competitive exam from states Q, S, T and U in 2004
= 240 + 620 + 840 + 420 = 2120
=> Required average = $$\frac{2120}{4} = 530$$
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