Answered

Join the IDNLearn.com community and start finding the answers you need today. Our community provides accurate and timely answers to help you understand and solve any issue.

A group of pupils calculated their average score for a Mathematics
test. If one of them scored 9 marks more, their average score would
be 81. If one of them scored 3 marks less, their average score would
be 78. How many pupils were there in the group?

Sagot :

Answer: 4

Step-by-step explanation: +9-(-3)=12

81-78=3

so 12/3=4

Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. IDNLearn.com is committed to providing accurate answers. Thanks for stopping by, and see you next time for more solutions.