Question

The number of students in a private school increased by 7.5%. If the increase
in the number of students is 150, find the original number of students in the
school.
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Answer 1

Answer:

consider original no of students=100%

increased %= 107.5%

so 107.5%=150

original 100%=?

so 100%/107.5%*150=139.5