# Mathematics 2017 Past Questions | WAEC

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.

1. Express 0.0000407, correct to 2 significant figures

• A. 0.0
• B. 0.00004
• C. 0.000041
• D. 0.0000407

2.  If x varies inversely as y and y varies directly as z, what is the relationship between x and z?

• A. x $$\alpha$$ z
• B. x $$\alpha$$ $$\frac{1}{z}$$
• C. a $$\alpha$$ z$$^2$$
• D. x $$\alpha$$ $$\frac{1}{z^2}$$

3.  Evaluate $$\frac{3\frac{1}{4} \times 1\frac{3}{5}}{11\frac{1}{3} – 5 \frac{1}{3}}$$

• A. $$\frac{14}{15}$$
• B. $$\frac{13}{15}$$
• C. $$\frac{4}{5}$$
• D. $$\frac{11}{15}$$

4. The ages of Tunde and Ola are in the ratio 1:2. If the ratio of Ola’s age to Musa’s age is 4:5, what is the ratio of Tunde’s age to Musa’s age?

• A. 1 : 4
• B. 1 : 5
• C. 2 : 5
• D. 5 : 2

5. If M = {x : 3 $\le$  x < 8} and N = {x : 8 <  x $\le$ 12}, which of the following is true?

i. 8  M  N

ii. 8  M $\cup$ N

iii. M  N =

• A. iii only
• B. i and ii
• C. ii and iii only
• D. i, ii and iii

6. Given that a = log 7 and b = $\mathrm{log}$ 2, express log 35 in terms of a and b.

• A. a + b + 1
• B. ab – 1
• C. a – b + 1
• D. b – a + 1

7. If x = 2/3 and y = – 6, evaluate xy – y/x

• A. 0
• B. 5
• C. 8
• D. 9

8.  Solve the equation:   1/5x + 1/x= 3

• A. 1/5
• B. 2/5
• C. 3/5
• D. 4/5

9. A sum of N18,100 was shared among 5 boys and 4 girls with each boy taking N20.00 more than each girl. Find a boy’s share.

• A. N1,820.00
• B. 2,000.00
• C. N2,020.00
• D. N2,040.00

10. One factor of 7+3x10 is

• A. 7x + 5
• B. x – 2
• C. 7x – 2
• D. x – 5
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