JAMB Mathematics questions

497 questions with answers and explanations. Tap an option to check yourself.

1. Question 121· Fractions, decimals, approximations and percentages· JAMB

   A shirt marked ₦4,000 is sold at a discount of 15%. What is the selling price?

   • A₦3,400
   • B₦3,600
   • C₦3,850
   • D₦3,000

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2. Question 122· Fractions, decimals, approximations and percentages· JAMB

   The ratio of boys to girls in a class is 5 : 3. If there are 15 girls, how many students are in the class?

   • A45
   • B25
   • C40
   • D24

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3. Question 123· Fractions, decimals, approximations and percentages· JAMB

   A car bought for ₦2,000,000 depreciates by 10% of its value each year. Find its value after 2 years.

   • A₦1,800,000
   • B₦1,600,000
   • C₦1,620,000
   • D₦1,640,000

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4. Question 124· Fractions, decimals, approximations and percentages· JAMB

   Round 0.048573 to three significant figures.

   • A0.0486
   • B0.048
   • C0.049
   • D0.0485

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5. Question 125· Indices, logarithms and surds· JAMB

   Simplify (√5 + 1)(√5 − 1).

   • A4
   • B6
   • C√5
   • D5

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6. Question 126· Indices, logarithms and surds· JAMB

   Evaluate log₂ 32 − log₂ 4.

   • A3
   • B28
   • C8
   • D5

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7. Question 127· Indices, logarithms and surds· JAMB

   Simplify 2^5 × 2^-3.

   • A2
   • B8
   • C4
   • D16

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8. Question 128· Indices, logarithms and surds· JAMB

   Evaluate 27^(2/3).

   • A9
   • B18
   • C6
   • D3

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9. Question 129· Indices, logarithms and surds· JAMB

   Simplify √(3/4) × √(16/27).

   • A4/9
   • B2/3
   • C3/2
   • D1/3

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10. Question 130· Indices, logarithms and surds· JAMB

    Rationalise the denominator of 6/√3.

    • A6√3
    • B2√3
    • C√3
    • D3√2

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11. Question 131· Indices, logarithms and surds· JAMB

    Solve 2^(x + 1) = 32.

    • A4
    • B5
    • C3
    • D6

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12. Question 132· Indices, logarithms and surds· JAMB

    Evaluate 81^(1/4) × 27^(1/3).

    • A9
    • B6
    • C27
    • D3

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13. Question 133· Indices, logarithms and surds· JAMB

    Simplify √50 − √18.

    • A√32
    • B4√2
    • C2√2
    • D8√2

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14. Question 134· Indices, logarithms and surds· JAMB

    Simplify √12 + √27.

    • A√39
    • B5√3
    • C6√3
    • D13√3

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15. Question 135· Indices, logarithms and surds· JAMB

    Evaluate log₁₀ 50 + log₁₀ 2.

    • A1
    • B10
    • C2
    • D100

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16. Question 136· Indices, logarithms and surds· JAMB

    Given log 2 = 0.3010 and log 5 = 0.6990, find log 0.4.

    • A−1.0000
    • B0.3980
    • C1.0000
    • D−0.3980

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17. Question 137· Indices, logarithms and surds· JAMB

    Given that log₁₀ 2 = 0.3010 and log₁₀ 3 = 0.4771, find log₁₀ 6.

    • A1.4313
    • B0.1436
    • C0.9030
    • D0.7781

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18. Question 138· Indices, logarithms and surds· JAMB

    Simplify (a²b³)² ÷ a³b.

    • Aa⁷b⁷
    • Bab⁵
    • Cab⁶
    • Da²b⁵

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19. Question 139· Indices, logarithms and surds· JAMB

    Evaluate 8^(−2/3).

    • A4
    • B1/4
    • C−4
    • D1/16

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20. Question 140· Indices, logarithms and surds· JAMB

    Solve 9^(x − 1) = 27^(x − 3).

    • A7
    • B5
    • C−7
    • D11/5

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