Question

You miss 3 out of 10 questions on a science quiz and 4 out of 15 questions on a maths quiz. On which quiz did you have greater percentage of correct answers?

Answer 1

Step 1: Calculate the questions correct in Science quiz

Miss 3 out of 10 questions

So, the correct answers $=10-3=7$

Percentage of correct answers in science quiz $=\frac{7}{10}\times 100\%=70\%$

Step 2: Calculate the questions correct in Maths quiz

Miss 4 out of 15 questions

So, the correct answers $=15-4=11$

Percentage of correct answers in maths quiz $=\frac{11}{5}\times 100\%=73.3\%$

Thus Maths quiz have greater percentage of correct answers as $\frac{11}{15}>\frac{7}{10}$

Hence the Maths quiz have greatest percentage of correct answers.