# Mathematics 2017 Past Questions | JAMB

Study the following Mathematics past questions and answers for JAMBWAEC  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√64a3)$$^{−1}$$

• 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 3x2 + 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 2x2 − x + 1 and 3 − 2x

• A. 4x3 − 8x2 + 5x + 3
• B. −4x3 + 8x2 − 5x + 3
• C. −4x3 − 8x2 + 5x + 3
• D. 4x3 + 8x2 − 5x + 3
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