# Dinosaurs

More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed and 1/7 saws and the rest gripped. How many were at the pond? How many were there?

Correct result:

n =  56
j =  8

#### Solution:

$j=n\mathrm{/}7=56\mathrm{/}7=8$

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