Class alphabet

All 29 pupils in the class are written in a class alphabet. The number of pupils enrolled before Paul is three times higher than those behind him. Calculate how many pupils are enrolled after Paul.

Correct answer:

n =  7

Step-by-step explanation:


3n + 1 + n = 29

3·n + 1 + n = 29

4n = 28


n = 28/4 = 7

n = 7

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