Answer:
70
Step-by-step explanation:
If 3 weeks, 21 quizzes was done
If 10 week, how many quizzes was done
So technically this is what the question is about
So let's count in 1 week, how many quizzes were done, to do that, just divide
21/3
= 7
Therefore we can take it as, in one week, 7 quizzes will be done
Therefore in 10 weeks
= 7 x 10
= 70
