LAT — Law Admission Test

Quantitative Ability / Mathematics — Practice Exercise

Take the Quantitative Ability / Mathematics — Practice Exercise: 18 multiple-choice questions (28 minutes) with instant scoring and a full answer review. Covers 18 Mathematics. Quantitative Ability / Mathematics practice exercise from Dogar's Testmaster LAT guide — every question with the book's printed answer key.

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All 18 questions in this test

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  1. Q1. x + y = 17 and x = 2, then the value of y is?

    • A. 13
    • B. 15
    • C. 19
    • D. 10

  2. Q2. If x + 2y = 11 and x + y = 10, the value of y is?

    • A. 1
    • B. 2
    • C. 3
    • D. 4

  3. Q3. If x + 3y = 7 and 2x + y = 5, then x/y is?

    • A. 1/2
    • B. 1/3
    • C. 2/5
    • D. 8/9

  4. Q4. The value of x² + 5x + 6 at x = 2 is?

    • A. 10
    • B. 14
    • C. 18
    • D. 20

  5. Q5. If 2x + y = 11 and 3x + 2y = 17, then y is?

    • A. 1
    • B. 5
    • C. 6
    • D. 4

  6. Q6. 2x²y when multiplied with (x² + y²) gives?

    • A. 2x³y³ + 2xy³
    • B. 2x⁴y + 2x²y³
    • C. 2xy² + 2x²y
    • D. 2xy³ + 2x³y

  7. Q7. The value of {0.5⁴ − 0.4⁴} / {0.5² + 0.4²} is?

    • A. 0.9
    • B. 0.09
    • C. 0.19
    • D. 0.31

  8. Q8. If a² − b² = 36 and a − b = 12, then the average of 'a' and 'b' is?

    • A. 3
    • B. 12
    • C. 6
    • D. 3/2

  9. Q9. If (x + 1/x)² = 96, what is the value of x² + 1/x²?

    • A. 94
    • B. 98
    • C. 100
    • D. 90

  10. Q10. If (x + y)² = 25 and x² + y² = 13, then xy is equal to?

    • A. 16
    • B. 20
    • C. 18
    • D. 6

  11. Q11. When 3x² + 5x + 7 is subtracted from x² + 8x + 3, the result is?

    • A. 5x² − 3x + 4
    • B. 3x − 2x² − 4
    • C. x² + 8x + 10
    • D. 11x² + 3x + 10

  12. Q12. The value of (x + y)² + (x − y)² is?

    • A. 4
    • B. 2(x² + y²)
    • C. 4xy
    • D. −4xy

  13. Q13. The value of (x + y)² − (x − y)² is?

    • A. 4
    • B. x² + y²
    • C. 4xy
    • D. −4xy

  14. Q14. If 1/x = 1/y + 1/z, then 'x' in terms of 'y' and 'z' is given by?

    • A. (y + z) / (y − z)
    • B. yz / (y + z)
    • C. (y + z) / yz
    • D. 1/z − 1/y

  15. Q15. If 3x + 5y = 10 and 3y + 5x = 30, then the average of 'x' and 'y' is?

    • A. 3/2
    • B. 4
    • C. 5/2
    • D. 7/2

  16. Q16. In Ay − b = c − dy, what is 'y' in terms of 'a', 'b', 'c' and 'd'?

    • A. (c + b) / (a + d)
    • B. (c − b) / (a + d)
    • C. (c − b) / (a − d)
    • D. (c + b) / (a − d)

  17. Q17. If 4x − y = 13 and 3x − 2y = 7, then what is the average of 'x' and 'y'?

    • A. 4
    • B. 3
    • C. 2
    • D. 6

  18. Q18. If 'x' and 'y' are positive and 1/x = 3 + 1/y, is 'x' greater than 'y'?

    • A. Yes
    • B. No
    • C. It cannot be determined
    • D. They are equal

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