Mathematics JAMB, WAEC, NECO AND NABTEB Official Past Questions

1324

Simplify (3√64a3)\(^{−1}\)

  • A. 4a
  • B. \(\frac{1}{8a}\)
  • C. 8a
  • D. \(\frac{1}{4a}\)
View Answer & Discuss JAMB 2017
1325

Find the gradient of the line joining the points (3, 2) and (1, 4)

  • A. 3/2
  • B. 2/1
  • C. -1
  • D. 3/2
View Answer & Discuss JAMB 2017
1326

The operation * on the set R of real number is defined by x * y = 3x + 2y − 1, find 3* − 1

  • A. 9
  • B. - 9
  • C. 6
  • D. - 6
View Answer & Discuss JAMB 2017
1327

Make S the subject of the relation
p = s + \(\frac{sm^2}{nr}\)

  • A. s = \(\frac{nrp}{nr + m^2}\)
  • B. s = nr + \(\frac{m^2}{mrp}\)
  • C. s = \(\frac{nrp}{mr}\) + m2
  • D. s = \(\frac{nrp}{nr}\) + m2
View Answer & Discuss JAMB 2017
1328

Factorize completely X2+2XY+Y2+3X+3Y-18

  • A. (x + y + 6)(x + y -3)
  • B. (x - y - 6)(x - y + 3)
  • C. (x - y + 6)(x - y - 3)
  • D. (x + y - 6)(x + y + 3)
View Answer & Discuss JAMB 2017
1329

In the diagram above MN is a chord of a circle KMN centre O and radius 10cm. If < MON = 140°, find, to the nearest cm, the length of the chord MN.

  • A. 10cm
  • B. 19cm
  • C. 17cm
  • D. 12cm
View Answer & Discuss JAMB 2017
1330

Find ∫(x2 + 3x − 5)dx

  • A. \(\frac{x_3}{3}\) - \(\frac{3x_2}{2}\) - 5x + k
  • B. \(\frac{x_3}{3}\) - \(\frac{3x_2}{2}\) + 5x + k
  • C. \(\frac{x_3}{3}\) + \(\frac{3x_2}{2}\) - 5x + k
  • D. \(\frac{x_3}{3}\) + \(\frac{3x_2}{2}\) + 5x + k
View Answer & Discuss JAMB 2017
1331

Find the equation of the locus of a point p (x, y) such that pv = pw, where v= (1, 1) and w = (3, 5)

  • A. 2x + 2y = 9
  • B. 2x + 3y = 8
  • C. 2x + y = 9
  • D. x + 2y = 8
View Answer & Discuss JAMB 2017
1332

y is inversely proportional to x and y is 6 when x = 7. Find the constant of the variation

  • A. 47
  • B. 42
  • C. 54
  • D. 46
View Answer & Discuss JAMB 2017
1333

In how many ways can the word MACICITA be arranged?

  • A. \(\frac{8!}{2!}\)
  • B. \(\frac{8!}{3! 2!}\)
  • C. \(\frac{8!}{2! 2! 2!}\)
  • D. 8!
View Answer & Discuss JAMB 2017
1334

In how many ways can the word MATHEMATICS be arranged?

  • A. \(\frac{11!}{9!2!}\)
  • B. \(\frac{11!}{9!2!2!}\)
  • C. \(\frac{11!}{2!2!2!}\)
  • D. \(\frac{11!}{2!2!}\)
View Answer & Discuss JAMB 2017
1335

The pie chart shows the allocation of money to each sector in a farm. The total amount allocated to the farm is ₦ 80 000. Find the amount allocated to fertilizer

  • A. ₦ 35, 000
  • B. ₦ 40,000
  • C. ₦ 25,000
  • D. ₦ 20,000
View Answer & Discuss JAMB 2017
1336

Find the principal which amounts to ₦ 5,500 at a simple interest in 5 years at 2% per annum

  • A. ₦ 4,900
  • B. ₦ 5,000
  • C. ₦ 4,700
  • D. ₦ 4,000
View Answer & Discuss JAMB 2017
1337

If a rod 10cm in length was measured as 10.5cm, calculate the percentage error

  • A. 5%
  • B. 10%
  • C. 8%
  • D. 7%
View Answer & Discuss JAMB 2017
1338

Evaluate \(\frac{0.00000231}{0.007}\) and leave the answer in standard form

  • A. 3.3 x 10-4
  • B. 3.3 x 10-3
  • C. 3.3 x 10-5
  • D. 3.3 x 10-8
View Answer & Discuss JAMB 2017
1339

Find the number of ways that the letters of the word EXCELLENCE be arranged

  • A. \(\frac{10!}{2!2!2!}\)
  • B. \(\frac{10!}{4!2!}\)
  • C. \(\frac{10!}{4!2!2!}\)
  • D. \(\frac{10!}{2!2!}\)
View Answer & Discuss JAMB 2017
1340

A car dealer bought a second-hand car for 250,000 and spent N 70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?

  • A. 60%
  • B. 32%
  • C. 25%
  • D. 20%
View Answer & Discuss JAMB 2017
1341

Divide 4×3 – 3x + 1 by 2x – 1

  • A. 2x2 -x + 1
  • B. 2x2 - x -1
  • C. 2x2 + x + 1
  • D. 2x2 + x -1
View Answer & Discuss JAMB 2017
1342

In the figure, find x

  • A. 40o
  • B. 55o
  • C. 50o
  • D. 60o
View Answer & Discuss JAMB 2017
1343

A man covered a distance of 50 miles on his first trip, on a later trip he traveled 300 miles while going 3 times as fast. His new time compared with the old distance was?

  • A. three times as much
  • B. the same
  • C. twice as much
  • D. half as much
View Answer & Discuss JAMB 2017
1344

Simplify 4\(\sqrt{27}\) + 5\(\sqrt{12}\) − 3\(\sqrt{75}\)

  • A. 7
  • B. − 7
  • C. − 7\(\sqrt{3}\)
  • D. 7\(\sqrt{3}\)
View Answer & Discuss JAMB 2017