Arithmetic mean of marks (out of 25) scored by 10 students was 15. One of the student, named Karishma enquired the other 9 students and find the deviations from her marks are noted as -8, -6, -3, -1, 0, 2, 3, 4, 6. Find the Karishma's marks. 8th Class
saashareddy007
Asked:
December 2022
How many images of himself does an observer see if 2 adjacent walls and the ceiling of a rectangular room are mirror surfaced....