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2/5 of number n is 18 find the value of n

Sagot :

To find the value of \( n \) given that \( \frac{2}{5} \) of \( n \) is 18, you can set up the equation:

\[ \frac{2}{5}n = 18 \]

To solve for \( n \), multiply both sides of the equation by the reciprocal of \( \frac{2}{5} \), which is \( \frac{5}{2} \):

\[ n = 18 \times \frac{5}{2} \]

\[ n = 18 \times 2.5 \]

\[ n = 45 \]

So, the value of \( n \) is 45.