0000:00:00:00:00Start7Number 7ExplanationThe average mathematics exam score of 393939 students is 454545. If Yanto's score is combined with that group, the average score becomes 464646. Then Yanto's exam score is ....474747515151858585909090929292
7Number 7ExplanationThe average mathematics exam score of 393939 students is 454545. If Yanto's score is combined with that group, the average score becomes 464646. Then Yanto's exam score is ....474747515151858585909090929292
