Further Maths > 2017 > 28
WASSCE
In a class of 10 boys and 15 girls, the average score in a Biology test is 90. If the average scorce for the girls is x, find the average score for the boys in terms of x.
A.
| 200 | - | 2 3 | x |
B.
| 225 | - | 3 2 | x |
C.
250 - 2x
D.
250 - 3x
Answer: B
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