Linear Equations

JKSSB Finance Accounts Assistant · Mathematics · 15 practice questions with answers and explanations: 4 Easy, 6 Medium, 5 Hard.

Sample questions

Sample Easy question 1

Solve the system x + y = 10, x - y = 2. Find x.

  1. 5
  2. 6
  3. 7
  4. 8
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Answer: B. Adding both equations: 2x = 12, so x = 6.

Sample Medium question 2

If x/2 + y/3 = 4 and x − y = 3, find x + y.

  1. 9
  2. 8
  3. 10
  4. 12
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Answer: A. Multiply the first by 6: 3x + 2y = 24. With x = y + 3: 5y + 9 = 24 → y = 3, x = 6, so x + y = 9.

Sample Hard question 3

The sum of two numbers is 25 and their difference is 5. Find the larger number.

  1. 12
  2. 13
  3. 15
  4. 18
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Answer: C. Larger number = (25 + 5)/2 = 15.

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