# Maths

posted by Tarunima

Rupashi needs to get a perfect score of 100 For her last English test in this year so as to improve her average score of 84 to 86 .how many test were there altogether in this year

1. Steve

If there are n tests already taken, we need

84n + 100 = 86(n+1)
84n + 100 = 86n + 86
2n = 14
n = 7

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