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What should come in place of question ma...

What should come in place of question mark (?) in the following questions ?
48% of 525 + ?% of 250 = 499

A

88.8

B

76.6

C

82.6

D

98.8

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \( 48\% \text{ of } 525 + ?\% \text{ of } 250 = 499 \), we will follow these steps: ### Step 1: Convert percentages to decimal form First, we convert the percentages into decimal form. - \( 48\% \) can be expressed as \( \frac{48}{100} \) or \( 0.48 \). - Let \( ?\% \) be represented as \( \frac{?}{100} \). ### Step 2: Write the equation Now, we can rewrite the equation: \[ 0.48 \times 525 + \frac{?}{100} \times 250 = 499 \] ### Step 3: Calculate \( 48\% \text{ of } 525 \) Next, we calculate \( 48\% \text{ of } 525 \): \[ 0.48 \times 525 = 252 \] ### Step 4: Substitute the value into the equation Now we substitute this value back into the equation: \[ 252 + \frac{?}{100} \times 250 = 499 \] ### Step 5: Isolate the term with the question mark To isolate the term with the question mark, we subtract 252 from both sides: \[ \frac{?}{100} \times 250 = 499 - 252 \] \[ \frac{?}{100} \times 250 = 247 \] ### Step 6: Solve for the question mark Now, we multiply both sides by 100 to eliminate the fraction: \[ ? \times 250 = 24700 \] Next, we divide both sides by 250: \[ ? = \frac{24700}{250} \] ### Step 7: Calculate the value of ? Calculating the right-hand side: \[ ? = 98.8 \] ### Final Answer Thus, the value that should come in place of the question mark is \( 98.8 \).
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