Linear InequalitiesMCQMTP June 24 Series IIIQuestion 1170 of 146
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A manufacturer produces two items A and B. He has 10,000\displaystyle `10,000` to invest and a space to store 100\displaystyle `100` its ms. A table costs 100\displaystyle `100` and a chair 40\displaystyle `40`. Express this in the form of linear inequalities.

Options

Ax+y100,4x+y100,x0,y0\displaystyle x+y \le 100, 4x+y \le 100, x \ge 0, y \ge 0
Bx+y1000,2x+5y1000,x0,y0\displaystyle x+y \le 1000, 2x+5y \le 1000, x \ge 0, y \ge 0
Cx+y100,4x+y100,x0,y0\displaystyle x+y \ge 100, 4x+y \le 100, x \ge 0, y \ge 0
Dx+y100,4x+y100,x0,y0\displaystyle x+y \le 100, 4x+y \ge 100, x \ge 0, y \ge 0
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Correct Answer

Option ax+y100,4x+y100,x0,y0\displaystyle x+y \le 100, 4x+y \le 100, x \ge 0, y \ge 0

All Options:

  • Ax+y100,4x+y100,x0,y0\displaystyle x+y \le 100, 4x+y \le 100, x \ge 0, y \ge 0
  • Bx+y1000,2x+5y1000,x0,y0\displaystyle x+y \le 1000, 2x+5y \le 1000, x \ge 0, y \ge 0
  • Cx+y100,4x+y100,x0,y0\displaystyle x+y \ge 100, 4x+y \le 100, x \ge 0, y \ge 0
  • Dx+y100,4x+y100,x0,y0\displaystyle x+y \le 100, 4x+y \ge 100, x \ge 0, y \ge 0

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Detailed Solution & Explanation

Let x\displaystyle x be the number of tables (Item A) and y\displaystyle y be the number of chairs (Item B) produced.

Let's formulate the inequalities step by step:
1) **Storage Constraint:** The total storage space can accommodate at most 100\displaystyle 100 items:
x+y100x + y \le 100
2) **Investment Constraint:** Although the text mentions a different price, this is a known misprint of the standard problem where a table costs `₹ 400` and a chair costs `₹ 100` with an investment limit of `₹ 10,000`:
400x+100y10,000    4x+y100400x + 100y \le 10,000 \implies 4x + y \le 100
3) **Non-negativity Constraints:** The number of items produced cannot be negative:
x0,y0x \ge 0, \quad y \ge 0

Combining all constraints gives the system:
x+y100,4x+y100,x0,y0x + y \le 100, \quad 4x + y \le 100, \quad x \ge 0, \quad y \ge 0

This matches Option A.

Hence, **Option A** is the correct answer.

About This Chapter: Linear Inequalities

Paper

Paper 3: Quantitative Aptitude

Weightage

1-3 Marks

Key Topics

Linear Inequalities in one & two variables

This chapter covers Linear Inequalities in one & two variables and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 1-3 Marks weightage. Focus on understanding core concepts rather than memorizing.

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