akshay scored 76 83 70 and 83 mark in four tests . what is the least number of mark he has to score in his next test if he has a mean score of 80 mark in five test.
Answers
Answered by
3
Answer:
Mean of marks is 80
Therefore, 73+86+78+75+x /5
=312+ x /5=80
=312+x=400
=x=400-312=88
Answered by
2
Step-by-step explanation:
Average=80 marks
Total marks in 5 tests=(5*80)marks
=400 marks
Total marks in 4 tests
=(76+83+70+83)marks
=312 marks
Marks in 5th test=(400-312)marks
=88 marks
Hope it helps......
Please mark me as the brainliest...
Similar questions