Kyle missed 3 questions on the math exam. If he missed 15% of the questions, how many questions were on the exam all together?

Respuesta :

Step-by-step explanation:

consider the number of Q = X

then 15% × X = 3

then (15 ÷100) X = 3

X = 3 × ( 100÷ 15 ) = 20 Q ( :