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jamb2005physics
Q1. If two inductors of inductances 3H and 6H are arranged in series, the total inductance is
A9.0H
B18.0H
C0.5H
D2.0H
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jamb2004English Language
Q2. expostulate
AexposTUlate
BexpostuLATE
CEXpostulate
DexPOStulate
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jamb2002government
Q3. The final interpretation pf the provisions of a federal constitution is vested in the
Ahead of state
Bcouncil of state
Chighest legislative body
Dhighest court of the land .
Correct Answer: D
The final interpretation pf the provisions of a federal constitution is vested in the highest court of the land.
One of the main characteristics of a Federal System of Government is the existence of a court to interpret the constitution and resolve conflicts between the centre and the federating units.
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jamb2018computerstudies
Q4. Which of the following is an example of an infrastructure-as-a-service (IaaS) provider?
AGoogle Docs
BMicrosoft Azure
CSalesforce
DSlack
Correct Answer: B
Microsoft Azure is an IaaS provider, offering virtual machines, storage, and networking infrastructure. Google Docs, Salesforce, and Slack are SaaS (Software-as-a-Service) platforms, providing applications rather than raw infrastructure.
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jamb2024mathematics
Q5. The table below shows the frequency distribution of a data. If the mean is 4, find x + y. [x: 1, 2, 3, 4, 5] [f: 2, 1, 2, 1, x+y]
A2
B3
C4
D5
Correct Answer: A
Mean = Σ(fx)/Σf. Σ(fx) = 1×2 + 2×1 + 3×2 + 4×1 + 5(x+y) = 14 + 5(x+y). Σf = 6 + x + y. Mean = 4: (14 + 5(x+y))/(6 + x + y) = 4, 14 + 5x + 5y = 24 + 4x + 4y, x + y = 2.
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jamb2024biology
Q6. Which type of plant is characterized by the presence of vascular tissues?
ABryophytes
BPteridophytes
CGymnosperms
DAngiosperms
Correct Answer: B
Pteridophytes, such as ferns, have vascular tissues (xylem and phloem), unlike bryophytes. Gymnosperms and angiosperms also have vascular tissues, but pteridophytes are the earliest group listed with this feature.
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jamb2017mathematics
Q7. Evaluate 1 − (1/5 x 1(2/3)) + (5 + 1(2/3))
A4
B3
C22/3
D3(2/3)
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jamb2013history
Q8. A historical feature of the legislative council that met in 1923 was that for the first time it
Aincluded the official members who were Nigerians
Bincluded only British officials
Cincluded elected African members
Dacted in a deliberative capacity
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jamb2018mathematics
Q9. Find the equation of the tangent at the point (2, 0) to the curve y = x2 - 2x
Ay = 2x - 4
By = 2x + 4
Cy = 2x - 2
Dy = 2x + 2
Correct Answer: A
The gradient to the curve is found by differentiating the curve equation with respect to x
So dy/dx 2x - 2
The gradient of the curve is the same with that of the tangent.
At point (2, 0) dy/dx = 2(2) - 2
= 4 – 2 = 2
The equation of the tangent is given by (y - y1) dy/dx
(x – x1)
At point (x1, y1) = (2, 0)
y - 0 = 2(x - 2)
y = 2x - 4
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jamb2002mathematics
Q10. A solid hemisphere has a radius of 7 cm. Find the total surface area.
A400 cm2
B462 cm2
C66 cm2
D308 cm2
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jamb2019economics
Q11. For the data set: 3, 5, 7, 9, 5, the mean deviation is
A1.6
B2.0
C2.4
D3.0
Correct Answer: A
Mean = (3+5+7+9+5)/5 = 5.8. Absolute deviations: |3-5.8|=2.8, |5-5.8|=0.8, |7-5.8|=1.2, |9-5.8|=3.2, |5-5.8|=0.8. Mean deviation = (2.8+0.8+1.2+3.2+0.8)/5 = 1.6.
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JAMB2025English Language
Q12. Choose the correct spelling.
Aaccomodation
Baccomadation
Caccommodation
Dacommodation
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jamb2024arabicstudies
Q13. Translate the Arabic phrase 'شكرا جزيلا' into English.
AGood morning
BThank you very much
CPlease
DGoodbye
Correct Answer: B
'شكرا جزيلا' (shukran jazīlan) means 'Thank you very much.' Others are 'صباح الخير' (good morning), 'من فضلك' (please), and 'مع السلامة' (goodbye).
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jamb2013history
Q14. In the Oyo traditional political system, the Alaafin of Oyo was elected or chosen by a group known
AOgbon
BOyo Mesi
CBaale
DOhanaeze
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jamb2022economics
Q15. If a firm’s total variable cost is ₦1,500 and output is 50 units, what is the average variable cost?
A₦20
B₦30
C₦40
D₦50
Correct Answer: B
Average variable cost = Total variable cost / Output = 1,500 / 50 = ₦30.
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jamb2023fineart
Q16. Which Nigerian artist is known for paintings of everyday life and market scenes?
AYusuf Grillo
BBen Enwonwu
CKolawole Oshinowo
DAina Onabolu
Correct Answer: C
Kolawole Oshinowo (1948–2022) painted everyday life, focusing on market scenes.
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jamb2013English Language
Q17. Our teacher defined ......in his introductory lesson
Aonomatopoeia
Bonomatopieoa
Conomatopiea
DOnomatopoia
Correct Answer: A
The correct option is option A.
Onomatopoeia; is the formation of a word from a sound associated with what is named. Example animals sounds such as meow, chirp etc
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jamb2009physics
Q18. The process of energy production in the sun is?
ANuclear fission
BNuclear fusion
CElectron collision
DRadioactive decay
Correct Answer: B
The process of energy production in the sun is nuclear fusion, where hydrogen nuclei combine under extreme temperature and pressure to form helium, releasing enormous amounts of energy in the process.
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jamb2023chemistry
Q19. Fluorine is prepared differently from other halogens because it is
Aa poisonous gas
Ban oxidizing agent
Chighly electronegative
Dhighly reactive
Correct Answer: D
Fluorine is prepared by electrolysis (Moissan’s method) because it is highly reactive and cannot be prepared by chemical oxidation like other halogens due to its extreme reactivity.
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jamb2insurance
Q20. Which of the following is a temporary document given to the insured in an insurance contract?