Built in Nigeria · For Nigerian students

Pass JAMB, WAEC & NECO
with an AI tutor that actually shows the working.

9ja Expo Pro gives you past questions from 2007 to date, full step-by-step solutions, topic breakdowns and mini mock tests — across every Nigerian secondary school subject.

2007→24
Past question coverage
19+
Subjects covered
3
Exam bodies
JAMB

UTME-style multiple choice. Time-boxed drills mirroring the real CBT format.

WAEC

SSCE objectives and theory. Marking-scheme-aware solutions, every step shown.

NECO

Full coverage of NECO June/July & November/December syllabi from 2007 to date.

What you get

A lesson teacher in your pocket — without the lesson fee.

01

Past Questions

Real-style JAMB · WAEC · NECO past questions from 2007 to date, labelled by exam body, year and number.

02

Step-by-Step Solutions

Every formula, every line of working — the way a brilliant lesson teacher would solve it on a whiteboard.

03

Topic Explainer

Any concept, broken down in plain Nigerian English with everyday examples — Naira, markets, local geography.

04

Mock Tests

5 to 10-question mini mocks on any subject or topic. Find the gaps before the exam hall does.

05

All Subjects

Sciences, humanities, technical, languages — Maths to Yoruba, Physics to CRS. Nothing left out.

06

Mobile-First

Built to feel native on your phone. Clean text, copyable answers, no clutter.

Every subject. Every syllabus. One app.

MathematicsEnglish LanguagePhysicsChemistryBiologyFurther MathsGovernmentEconomicsGeographyLiteratureAgricultural Sci.CRSIRSCommerceAccountingYorubaIgboHausaFrench
Sample solution

Real working. Not vibes.

Every solution identifies what the question is asking, states the formula, shows the working line by line and ends with a Quick Tip you can carry into the exam hall.

JAMB2022
EXAM: JAMB 2022 | SUBJECT: Physics | Q14
A body of mass 5 kg moving at 10 m/s collides
with a stationary body of mass 3 kg. If they
stick together, find their common velocity.

SOLUTION:
1. Conservation of linear momentum:
   m1·u1 + m2·u2 = (m1 + m2)·v
2. (5)(10) + (3)(0) = (5 + 3)·v
3. 50 = 8v   →   v = 6.25 m/s

ANSWER: 6.25 m/s

QUICK TIP:
- "Stick together" = perfectly inelastic.
- Momentum is conserved; kinetic energy is not.

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