1 Answer

Hitesh Chavda · Answer 1 · 2023-07-12T12:59:49+0000

Solution:

According to the information given in the problem, we get the following equation:

By cross-multiplication, we get:

this is equivalent to:

solving for ER, we get:

$ER\text{ =}(390)/(65)=6$

so that, we can conclude that the correct answer is:

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