The average marks obtained by 22 candida...

The average marks obtained by 22 candidates in an examination are 45. The average marks of the first 10 candidates are 55 and those of the last eleven are 40. The number of marks obtained by the eleventh candidate is:

47 .5

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The average marks obtained by 22 candidates in an examination is 45. The average marks of the first ten are 55 and that of the last eleven are 40. The number of marks obtained by the 11th candidate is (a) 0 (b) 45 (c) 47.5 (d) 50

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S CHAND IIT JEE FOUNDATION-AVERAGE -QUESTION BANK -16

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