To score 300 in JAMB you need an average of 75 out of 100 in each of your four subjects, or about 135 of 180 questions right. Get there by sitting a full timed mock first, fixing your weakest topics before anything else, practising every day in the CBT format, and taking at least one full mock a week so 2 hours for 180 questions feels normal.
Three hundred is the number most JAMB candidates dream about, and most never plan for. The good news: 300 is not a magic gift for "brilliant" students. It is a specific, countable target, and you can work backwards from it.
What does 300 in JAMB actually mean?
JAMB scores each of your four subjects out of 100, then adds them up to a total out of 400. So 300 means an average of 75 in every subject.
| Subject | Questions | Right answers for ~75 |
|---|---|---|
| Use of English | 60 | about 45 |
| Subject 2 | 40 | about 30 |
| Subject 3 | 40 | about 30 |
| Subject 4 | 40 | about 30 |
| Total | 180 | about 135 |
That's the whole secret: you can miss about 45 questions and still score 300. You don't need to know everything. You need to stop losing marks on things you could know. (See exactly how JAMB is scored.)
Step 1: Find your starting point with a full mock
Before you read another textbook, sit a full timed mock: English plus your three subjects, 180 questions, 2 hours. Not a quiz. The real thing.
Your first mock score is not a judgement; it's a map. It tells you:
- Which subject is dragging your total down the most
- Which topics inside that subject cost you the most marks
- Whether you ran out of time, and where you slowed down
Step 2: Fix your weakest topics first
Most students revise the topics they enjoy. That feels productive, but it barely moves the score. The fastest climb comes from turning your weakest topics into average ones.
If you're getting 3 out of 10 in Optics and 9 out of 10 in Mechanics, an hour on Optics is worth far more than an hour on Mechanics. Keep a list of your bottom five topics and attack them every day until they're no longer the bottom five.
Step 3: Practise every day, in the CBT format
JAMB is a computer-based test. Practising only on paper leaves a gap: scrolling, the navigator, the clock in the corner. Do your daily questions in a CBT-style environment so exam day feels familiar.
- 30 to 60 minutes a day beats a 6-hour Saturday marathon
- Read every explanation, especially for the questions you got right by guessing
- Mix subjects within the week so nothing goes cold
Step 4: Don't leave easy marks in English
Use of English is worth 100 marks, a full quarter of your score, and it is compulsory. Many science students neglect it and lose 20 or more marks they could have kept. Three things move English fastest:
- Vocabulary: "nearest in meaning" and "opposite in meaning" questions. Learn a few words a day with their synonyms and antonyms (here's how to master JAMB synonyms and antonyms).
- The set novel: questions on The Lekki Headmaster are some of the easiest marks if you've actually read it.
- Comprehension and grammar practice under time pressure.
Step 5: One full mock every week
Once a week, sit a full 2-hour mock. Write the score down. Watching your number climb from, say, 210 to 245 to 270 is the best motivation there is, and it tells you when you're truly ready.
Two hours for 180 questions works out to about 40 seconds per question. Weekly mocks train that pace until it's automatic. Learn more in our CBT exam-day tips.
A simple weekly plan for 300
| Day | What to do |
|---|---|
| Mon–Fri | 5 English words (5 min) + 40–60 min on your weakest topics, rotating subjects |
| Saturday | Full 2-hour mock, then review every wrong answer |
| Sunday | Light day: read a chapter of the novel, update your weak-topic list |
2Wise builds this plan for you automatically from your own mock results, and adjusts it every week. But even on paper, this structure works. The key is doing it every day.
Frequently asked questions
Is 300 a good JAMB score?
Yes. 300 out of 400 is a high score that puts you in a strong position for competitive courses like Medicine, Law and Engineering in many universities, though each school sets its own departmental cut-off.
How many questions do I need to get right to score 300?
About 135 of the 180 questions, which is roughly 75%. Because each subject is scored out of 100, that means about 45 of 60 in English and 30 of 40 in each of your other three subjects.
How long should I study daily for JAMB?
Consistency beats long sessions. 30 to 60 minutes of focused practice every day, plus one full 2-hour mock a week, is more effective than cramming on weekends.
Can I score 300 if I failed JAMB before?
Yes. A past score tells you which subjects pulled you down. Start with a mock, fix those weak areas first, and track your mock scores weekly so you can see the climb.
Last checked 22 October 2026. JAMB changes dates and rules from year to year. Always confirm on jamb.gov.ng.