2 years ago

The average height of a class of 18 students is 105 cm After arrival of 7 new students the

Mathematics

1 answer:

lutik1710 [3]2 years ago

3 0

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

Answer: 2500cm

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