Preparing for the Joint Admissions and Matriculation Board (JAMB) examination can be a daunting task.
However, one effective strategy is to study past questions, as JAMB is known to repeat questions from previous exams.
In this article, we have compiled a list of randomly selected JAMB Mathematics repeated questions for the year 2023.
These questions will help you familiarize yourself with the exam format and boost your chances of scoring 300+ in the JAMB Mathematics section.
Question 1: Correct 241.34 (3 x 10-3)2 to 4 significant figures. A. 0.0014 B. 0.001448 C. 0.0022 D. 0.002172
Question 2: At what rate would a sum of #100.00 deposited for 5 years raise an interest of #7.50? A. 11/2% B. 21/2% C. 15% D. 25%
Question 3: Three children shared a basket of mangoes in such a way that the first child took % of the mangoes and the second % of the remainder. What fraction of the mangoes did the third child take? A. 3/16 B. 7/16 C. 9/16 D. 13/16
Question 4: Simplify and express in standard form (0.00275 x 0.00640/( 0.025 x 0.08). A. 8.8 x 10-1 B. 8.8 x 102 C. 8.8 x 10-3 D. 8.8 x 103
Question 5: Three brothers in a business deal share the profit at the end of the contract. The first received 1/3 of the profit, and the second 2/3 of the remainder. If the third received the remaining #12,000.00, how much profit did they share? A. #60,000.00 B. #54,000.00 C. #48,000.00 D. #42,000.00
Question 6: Simplify v160r2 + ¥(71r4 + ¥100r3) A. 9r2 B. 12V3r C. 13r D. ¥139r
Question 7: Simplify ¥27 + 3/V3 A. 4v3 B. 4/vV3 C. 3v3 D. 3V/4
Question 8: Simplify 3Log6g + Log612 + Log664 Log672 A. 5 B. 7776 C. Log631 D. (7776)6
Question 9: Simplify (4 + 1)-1 X-1 y-1
Question 10: Find the sum of the first twenty terms of the arithmetic progression Log a, Log a2, Log a3. A. log a20 B. log a21 C. log a200 D. log a210
Question 11: A carpenter charges #40.00 per day for himself and #10.00 per day for his assistant. If a fleet of cars was painted for #2,000.00, and the painter worked 10 days more than his assistant, how much did the assistant receive? A. #32.00 B. #320.00
Question 12: Find the sum of the first 18 terms of the progression 3, 6, 12… A. 3(217 + 1) B. 3(218 – 1) C. 3(218 + 1) D. 3(218 – 1)
Question 13: The angle of a sector of a circle, radius 10.5 cm, is 480. Calculate the perimeter of the sector. A. 88 cm B. 25.4 cm C. 25.6 cm D. 29.8 cm
Question 14: Find the length of a side of a rhombus whose diagonals are 6 cm and 8 cm. A. 8 cm B. 5 cm C. 4 cm D. 3 cm
Question 15: Each of the interior angles of a regular polygon is 140°. How many sides does the polygon have? A. 9 B. 8 C. 7 D. 5
Question 16: A cylindrical pipe, made of metal, is 3 cm thick. If the internal radius of the pipe is 10 cm, find the volume of metal used in making 3 m of the pipe. A. 1531 cm3 B. 2071 mcm3 C. 15,300 T1IcmM3 D. 20,700 ncm3
Question 17: If the height of two circular cylinders is in the ratio 2:3 and their base radii are in the ratio g, what is the ratio of their volume? A. 27:32 B. 27:23 C. 23:32 D. 21:27
Question 18: The locus of a point that moves so that it is equidistant from two intersecting straight lines is the A. perpendicular bisector of the two lines B. angle bisector of the two lines C. bisector of the two lines D. line parallel to the two lines
Question 19: 4, 16, 30, 20, 10, 14, and 26 are represented on a pie chart. Find the sum of the angles of the sectors representing all numbers equal to or greater than 16. A. 480 B. 840 C. 920 D. 2760
Question 20: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number. A. 3 B. 16 C. 18 D. 30
Question 21: Two numbers are removed at random from the numbers 1, 2, 3, and 4. What is the probability that the sum of the numbers removed is even? A. 2/3 B. % C. 1/3 D. %
Question 22: Find the probability that a number selected at random from 41 to 56 is a multiple of 9. A. 1/9 B. 2/15 C. 3/16 D. 7/8
Question 23: Musa borrows #10.00 at 2° per month interest and repays #8.00 after 4 months. However much does he still owe? A. #10.80 B. #10.67 C. #2.80 C. #2.67
Question 24: If 3 gallons of spirit containing 20% water are added to 5 gallons of another spirit containing 15% water, what percentage of the mixture is water? A. 24/5% B. 167/8% C. 181/8% D. 187/8°
Question 25: What is the product of 27/5 (3)3 and (1/5)? A. 5 B. 3 C. 1 D. 1/25
Question 26: Simplify 2log2/5 log72/125 + logg A. 14log3 B. -1 + 2log3 C. -1 + 5log2 D. 1-2log2
Question 27: A car travels from Calabar to Enugu, a distance of p km, with an average speed of u km per hour, and continues to Benin, a distance of q km, with an average speed of w km per hour. Find its average speed from Calabar to Benin. A. (p+q)up+wa B. uw C. uw(p+q)/iwptuq D. (wptuq)/(u+wa)
Question 28: If w varies inversely as uv/u + v and is equal to 8 when u = 2 and v = 6, find a relationship between u, v, w. A. upw = 16(u + t) B. 16ur = 3w(u + t) C. upw = 12(u + t) D. 12upw = u + r
Question 29: If g(x) = x2 + 3x, find g(lx + 1) – g(x). A. (x + 2) B. a(x + 2) C. (2x + 4) D. (+4)
Question 30: Factorize m3 m2 – m + 2. A. (me + 1)(m 2) B. (m + a)(m + 1)(m + 2) C. (m + 1)m + 1km 2) D. (m2 + 2)(m 1)
Conclusion
Practicing with past questions is a valuable tool in preparing for the JAMB Mathematics examination.
The above questions are a sample of randomly selected JAMB Mathematics repeated questions for the year 2023.
By studying and understanding these questions, you will increase your familiarity with the exam format and improve your chances of scoring 300+ in JAMB Mathematics
. Remember to also utilize other study materials and resources to ensure comprehensive preparation for the exam. Good luck!