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The least integer which when subtracted...

The least integer which when subtracted from the antecedent and added to the consequent of the ratio ` 9 : 8` gives a ratio less than the ratio ` 15 : 26` is

A

2

B

3

C

4

D

1

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we need to find the least integer \( x \) such that when \( x \) is subtracted from the antecedent (numerator) of the ratio \( 9:8 \) and added to the consequent (denominator), the resulting ratio is less than \( 15:26 \). ### Step 1: Set up the equation The original ratio is \( \frac{9}{8} \). When we subtract \( x \) from the numerator and add \( x \) to the denominator, we have: \[ \frac{9 - x}{8 + x} \] We need this ratio to be less than \( \frac{15}{26} \): \[ \frac{9 - x}{8 + x} < \frac{15}{26} \] ### Step 2: Cross-multiply to eliminate the fractions To solve the inequality, we can cross-multiply: \[ (9 - x) \cdot 26 < (8 + x) \cdot 15 \] ### Step 3: Expand both sides Expanding both sides gives: \[ 234 - 26x < 120 + 15x \] ### Step 4: Combine like terms Now, we will move all terms involving \( x \) to one side and constant terms to the other side: \[ 234 - 120 < 15x + 26x \] This simplifies to: \[ 114 < 41x \] ### Step 5: Solve for \( x \) Now, divide both sides by 41 to find \( x \): \[ x > \frac{114}{41} \] Calculating \( \frac{114}{41} \): \[ \frac{114}{41} \approx 2.78 \] ### Step 6: Find the least integer greater than \( 2.78 \) The least integer greater than \( 2.78 \) is \( 3 \). ### Conclusion Thus, the least integer \( x \) which satisfies the condition is: \[ \boxed{3} \]

To solve the problem step by step, we need to find the least integer \( x \) such that when \( x \) is subtracted from the antecedent (numerator) of the ratio \( 9:8 \) and added to the consequent (denominator), the resulting ratio is less than \( 15:26 \). ### Step 1: Set up the equation The original ratio is \( \frac{9}{8} \). When we subtract \( x \) from the numerator and add \( x \) to the denominator, we have: \[ \frac{9 - x}{8 + x} \] ...
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