# Mathematics 2017 Past Questions | JAMB

Study the following Mathematics past questions and answers for JAMB, WAEC NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

**41. **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

**42. **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

**43. **Simplify (3√64a^{3})\(^{−1}\)

**A.**4a**B.**\(\frac{1}{8a}\)**C.**8a**D.**\(\frac{1}{4a}\)

**44**. If \(\frac{2 \sqrt{3} – \sqrt{2}}{\sqrt{3} + 2 \sqrt{2}}\) = m + n √ 6,

find the values of m and n respectively

**A.**1, − 2**B.**− 2, n = 1**C.**\(\frac{-2}{5}\), 1**D.**\(\frac{2}{3}\)

**45**. If α and β are the roots of the equation 3x^{2} + bx − 2 = 0. Find the value of \(\frac{1}{\alpha}\) + \(\frac{1}{\beta}\)

**A.**\(\frac{-5}{3}\)**B.**\(\frac{-2}{3}\)**C.**\(\frac{1}{2}\)**D.**\(\frac{5}{2}\)

**46. **Find the range of the following set of numbers 0.4, −0.4, 0.3, 0.47, −0.53, 0.2 and −0.2

**A.**1.03**B.**0.07**C.**0.03**D.**1.0

**47. **Evaluate 1 − (\(\frac{1}{5}\) x 1\(\frac{2}{3}\)) + (5 + 1\(\frac{2}{3}\))

**A.**4**B.**3**C.**\(\frac{22}{3}\)**D.**3 \(\frac{2}{3}\)

**48. **What is the product of 2x^{2} − x + 1 and 3 − 2x

**A.**4x^{3}− 8x^{2}+ 5x + 3**B.**−4x^{3}+ 8x^{2}− 5x + 3**C.**−4x^{3}− 8x^{2}+ 5x + 3**D.**4x^{3}+ 8x^{2}− 5x + 3