Thirty boys and x girls sat for a test. The mean of the boys' scores and that of the girls were respectively 6 and 8. Find x if the total scores was 468
Number of boy's = 30
Number of girls = x
Mean of boys' score = 6, for girls = 8
Total score for boys = 30 x 6
Total score for both boys and girls = 468
180 + 8x = 468
x = \(\frac{288}{8}\)
= 36
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