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If 30% of 40% of X is 240, then what is ...

If 30% of 40% of X is 240, then what is the value of X?

A

441

B

2000

C

1200

D

1800

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation "If 30% of 40% of X is 240, then what is the value of X?", we can follow these steps: ### Step 1: Convert percentages to fractions We know that: - 30% can be expressed as \( \frac{30}{100} = \frac{3}{10} \) - 40% can be expressed as \( \frac{40}{100} = \frac{2}{5} \) ### Step 2: Set up the equation We can express the problem as: \[ 30\% \text{ of } 40\% \text{ of } X = 240 \] This can be rewritten using the fractions: \[ \frac{3}{10} \times \frac{2}{5} \times X = 240 \] ### Step 3: Simplify the left side Now, we can multiply the fractions: \[ \frac{3 \times 2}{10 \times 5} \times X = 240 \] This simplifies to: \[ \frac{6}{50} \times X = 240 \] We can further simplify \( \frac{6}{50} \) to \( \frac{3}{25} \): \[ \frac{3}{25} \times X = 240 \] ### Step 4: Solve for X To isolate X, we can multiply both sides by the reciprocal of \( \frac{3}{25} \), which is \( \frac{25}{3} \): \[ X = 240 \times \frac{25}{3} \] ### Step 5: Calculate the value of X Now, we can perform the multiplication: \[ X = \frac{240 \times 25}{3} \] Calculating \( 240 \div 3 = 80 \): \[ X = 80 \times 25 = 2000 \] ### Final Answer Thus, the value of \( X \) is \( 2000 \). ---
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