Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 62 and 57
respectively. if the total score for both girls and boys was 2950, find y.
Answers
Answered by
2
Answer:
30
Marks scored by girls = 62*20 = 1240
Marks scored by boys = 57y
1240 + 57y = 2950
y = 30
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Answered by
1
Answer:30
Step-by-step explanation:let ,=20
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