Q. 104.6( 24 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 schools is 66, find the number of candidates that appeared from school III.

Answer :

Let the number of candidates from school III be P.

Given,

Average score of all schools = 66

= 66

= 66

= 66

10340 + 55P = 66P + 9768

10340 – 9768 = 66P – 55P

P = = 52

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