Math, asked by tayyabsohail, 9 months ago

The average height of a class of 18 students is 105 cm. After the arrival of 7 new students the average
decreases by 5cm. Find sum of the heights of all the students in the class.
Select one​

Answers

Answered by Vaishnavi2107
6

Answer: Total number of students = 18 + 7 = 25

Average height of the 25 students = 105 - 5 = 100 cm

Sum of height of all students = 100 x 25 = 2500cm

Total number of students = 18 + 7 = 25

Average height of the 25 students = 105 - 5 = 100 cm

Sum of height of all students = 100 x 25 = 2500cm

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