Math, asked by iamapizzalover, 9 months ago

Please help me and answer this quickly. There were 20 participants in a competition. The average score was 62. The average score of the girls was 70 and that of the boys was 60. How many girls competed in the competition?

Answers

Answered by tanejakca
0
Total score =20*62=1240
Let x be number of girls
Therefore 70x+(20-x)*60=1240
70x+1200-60x=1240
10x=40
X=4 so 4girls and 16 boys are there
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