2/5 of Mary’s test marks is 30. Whats her actual score?

If \( \frac{2}{5} \) of Mary's test marks is 30, then her actual score can be found by solving for the total score.

Let the total score be \( x \). According to the problem, 
\[
\frac{2}{5} \times x = 30.
\]

Now, solve for \( x \) by multiplying both sides by the reciprocal of \( \frac{2}{5} \), which is \( \frac{5}{2} \):

\[
x = 30 \times \frac{5}{2} = \frac{150}{2} = 75.
\]

So, Mary's actual score is 75.

Would you like more details or have any questions?

Here are some related questions to explore:
1. What if \( \frac{3}{5} \) of her test marks was given instead?
2. How would you calculate her score if \( \frac{4}{7} \) of her score was 28?
3. What is the percentage equivalent of Mary's score?
4. What would her total score be if \( \frac{5}{8} \) of her marks was 45?
5. Can you express \( \frac{2}{5} \) as a decimal and solve the equation using decimals?

**Tip:** When solving fractions of a whole, multiplying by the reciprocal is an efficient way to find the total.

2/5 of Mary’s test marks is 30. What's her actual score?

Learn how to calculate Mary's total test score given that 2/5 of her marks equals 30. This problem demonstrates the use of fractions, proportions, and basic algebra to find the total. Suitable for students in Grades 5-7.

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