Respuesta :

Let, the number in 5th test = x

It would be: 96 + 93 + 97 + 92 + x / 5 ≥ 95
378+x / 5 ≥ 95

Multiply both sides by 5, 
378 + x ≥ 475

Subtract 378 from both sides, 
x ≥ 475 - 378
x ≥ 97

In short, He must need to score 97

Hope this helps!