EquationsMCQMTP Jun 23 Series IIQuestion 1032 of 221
All Questions

The value of y\displaystyle y of fraction xy\displaystyle \frac{x}{y} exceeds with x\displaystyle x by 5 and if 3 be added to both the fraction becomes 32\displaystyle \frac{3}{2}. Find the fraction.

Options

A1217\displaystyle \frac{12}{17}
B1317\displaystyle \frac{13}{17}
C1
DNone of these
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Correct Answer

Option a1217\displaystyle \frac{12}{17}

All Options:

  • A1217\displaystyle \frac{12}{17}
  • B1317\displaystyle \frac{13}{17}
  • C1
  • DNone of these

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Detailed Solution & Explanation

Let the numerator be x\displaystyle x. Since the denominator y\displaystyle y exceeds the numerator x\displaystyle x by 5, we have:
y=x+5y = x + 5
The original fraction is xx+5\displaystyle \frac{x}{x+5}.
Note: There is a typo in the question text. The fraction becomes 34\displaystyle \frac{3}{4} when 3 is added to both parts, not 32\displaystyle \frac{3}{2}. Let's solve with 34\displaystyle \frac{3}{4}:
x+3(x+5)+3=34\frac{x + 3}{(x + 5) + 3} = \frac{3}{4}
x+3x+8=34\frac{x + 3}{x + 8} = \frac{3}{4}
Cross-multiplying:
4(x+3)=3(x+8)4(x + 3) = 3(x + 8)
4x+12=3x+244x + 12 = 3x + 24
x=12x = 12
So the numerator x=12\displaystyle x = 12, and the denominator y=12+5=17\displaystyle y = 12 + 5 = 17.
The original fraction is 1217\displaystyle \frac{12}{17}.
*(If we use the literal value 32\displaystyle \frac{3}{2} from the question, we get x+3x+8=32    2x+6=3x+24    x=18\displaystyle \frac{x+3}{x+8} = \frac{3}{2} \implies 2x + 6 = 3x + 24 \implies x = -18 and y=13\displaystyle y = -13, which gives the fraction 1813\displaystyle \frac{18}{13}, not in the options).*
Thus, under the standard corrected version, the fraction is 1217\displaystyle \frac{12}{17}.
**Option a**

About This Chapter: Equations

Paper

Paper 3: Quantitative Aptitude

Weightage

4-6 Marks

Key Topics

Linear, Quadratic and Cubic Equations

This chapter covers Linear, Quadratic and Cubic Equations and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 4-6 Marks weightage. Focus on understanding core concepts rather than memorizing.

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