JAMB Mathematics questions

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

All JAMB WAEC

Question 361· Probability· JAMB
The probabilities that A and B pass an examination are 2/3 and 3/4, independently. Find the probability that both pass.
Show answer
Answer: C. 1/2
Explanation and discussion
Question 362· Probability· JAMB
A and B are independent events with P(A) = 0.3 and P(B) = 0.5. Find P(A and B).
Show answer
Answer: C. 0.15
Explanation and discussion
Question 363· Probability· JAMB
If the probability that an event happens is 0.4, the probability that it does not happen is
Show answer
Answer: A. 0.6
Explanation and discussion
Question 364· Probability· JAMB
A card is drawn from cards numbered 1 to 30. What is the probability that it is a multiple of 6?
Show answer
Answer: A. 1/6
Explanation and discussion
Question 365· Probability· JAMB
A bag contains 3 red and 5 green balls. One ball is drawn at random. What is the probability that it is not red?
Show answer
Answer: A. 5/8
Explanation and discussion
Question 366· Probability· JAMB
Two fair coins are tossed together. What is the probability of getting exactly one head?
Show answer
Answer: C. ½
Explanation and discussion
Question 367· Probability· JAMB
A number is chosen at random from 1 to 20. What is the probability that it is a multiple of 4?
Show answer
Answer: D. ¼
Explanation and discussion
Question 368· Probability· JAMB
Two fair dice are tossed. Find the probability that the sum is less than 4.
Show answer
Answer: B. 1/12
Explanation and discussion
Question 369· Probability· JAMB
A bag contains 2 red and 3 blue balls. Two balls are drawn one after the other with replacement. Find the probability that both are blue.
Show answer
Answer: A. 9/25
Explanation and discussion
Question 370· Probability· JAMB
A fair die is thrown once. What is the probability of getting an even number?
Show answer
Answer: B. ½
Explanation and discussion
Question 371· Probability· JAMB
A fair coin is tossed three times. What is the probability of getting three heads?
Show answer
Answer: B. 1/8
Explanation and discussion
Question 372· Progressions· JAMB
The first term of a GP is 18 and its sum to infinity is 27. Find the common ratio.
Show answer
Answer: B. 1/3
Explanation and discussion
Question 373· Progressions· JAMB
Find the sum to infinity of 8 + 4 + 2 + 1 + ...
Show answer
Answer: B. 16
Explanation and discussion
Question 374· Progressions· JAMB
3, x and 12 are consecutive terms of a geometric progression with positive terms. Find x.
Show answer
Answer: C. 6
Explanation and discussion
Question 375· Progressions· JAMB
Find the sum of the first 20 terms of the series 2 + 5 + 8 + ...
Show answer
Answer: C. 610
Explanation and discussion
Question 376· Progressions· JAMB
Find the 5th term of the geometric progression whose first term is 81 and common ratio is ⅓.
Show answer
Answer: C. 1
Explanation and discussion
Question 377· Progressions· JAMB
Find the sum of the first 10 terms of the arithmetic progression 4, 7, 10, …
Show answer
Answer: D. 175
Explanation and discussion
Question 378· Progressions· JAMB
Find the sum to infinity of 9 + 3 + 1 + …
Show answer
Answer: B. 13.5
Explanation and discussion
Question 379· Progressions· JAMB
Two numbers are inserted between 2 and 54 so that the four numbers form a GP. The two numbers are
Show answer
Answer: C. 6 and 18
Explanation and discussion
Question 380· Progressions· JAMB
Find the 12th term of the arithmetic progression 2, 5, 8, …
Show answer
Answer: C. 35
Explanation and discussion

Practise Mathematics like the real exam. A timed CBT, your score, and the topics to fix.

Start a Mathematics test

JAMB Mathematics questions

The probabilities that A and B pass an examination are 2/3 and 3/4, independently. Find the probability that both pass.

A and B are independent events with P(A) = 0.3 and P(B) = 0.5. Find P(A and B).

If the probability that an event happens is 0.4, the probability that it does not happen is

A card is drawn from cards numbered 1 to 30. What is the probability that it is a multiple of 6?

A bag contains 3 red and 5 green balls. One ball is drawn at random. What is the probability that it is not red?

Two fair coins are tossed together. What is the probability of getting exactly one head?

A number is chosen at random from 1 to 20. What is the probability that it is a multiple of 4?

Two fair dice are tossed. Find the probability that the sum is less than 4.

A bag contains 2 red and 3 blue balls. Two balls are drawn one after the other with replacement. Find the probability that both are blue.

A fair die is thrown once. What is the probability of getting an even number?

A fair coin is tossed three times. What is the probability of getting three heads?

The first term of a GP is 18 and its sum to infinity is 27. Find the common ratio.

Find the sum to infinity of 8 + 4 + 2 + 1 + ...

3, x and 12 are consecutive terms of a geometric progression with positive terms. Find x.

Find the sum of the first 20 terms of the series 2 + 5 + 8 + ...

Find the 5th term of the geometric progression whose first term is 81 and common ratio is ⅓.

Find the sum of the first 10 terms of the arithmetic progression 4, 7, 10, …

Find the sum to infinity of 9 + 3 + 1 + …

Two numbers are inserted between 2 and 54 so that the four numbers form a GP. The two numbers are

Find the 12th term of the arithmetic progression 2, 5, 8, …