In a class, there are 30 girls, whose average age is increased by 2,5 months, when a girl aged 18 years is replaced by another gir

Question

In a class, there are 30 girls, whose average age is
increased by 2,5 months, when a girl aged 18 years
is replaced by another girl. Find the age of the new
girl.​

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Madelyn 2 weeks 2021-10-04T22:22:00+00:00 1 Answer 0 views 0

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    2021-10-04T22:23:54+00:00

    Answer:

    Bro please mark me to the brain list answer. pls bro.

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14:4+1-6*5-7*14:3+5 = ? ( )