Q. 104.9( 7 Votes )

Candidates of four schools appear in a mathematics test. The data were as follows:


If the average score of the candidates of all the four school is 66, find the number of candidates that appeared from school III.

Answer :

Let no. of students appeared from school III = x

Given, Average score of all schools = 66


= 66


= 66


= 66


= 66



10340 – 9768 = 66x – 55x


11x = 572


x =


= 52


Therefore, no. of candidates appeared from school (III) are 52


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