2024 B.E.C.E MATHEMATICS (Essay & Objective) Questions & Answers {SierraLeone}

TUESDAY, 30th July, 2024

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Q1

Expand $(5m - 2n)^2$

$$(5m - 2n)^2 = (5m - 2n)(5m - 2n)$$$$5m(5m - 2n) - 2n(5m - 2n)$$$$25m^2 - 10mn - 10mn + 4n^2$$$$25m^2 - 20mn + 4n^2$$

Q1b

Let the exterior angle be $x$

$$144 + x = 180$$$$x = 180 - 144$$$$x = 36^\circ$$

Q1c

$$1110_2$$ $$- 111_2$$$$-----$$$$0111_2$$Q2a.i

Using Pythagoras

$BD^2 = AD^2 + AB^2$

$x^2 = 4^2 + 3^2$

$x^2 = 16 + 9$

$x^2 = 25$

$x = \sqrt{25}$

$x = 5\text{cm}$

ii.$\mathrm{<b> </b>}\mathrm{<br>}\mathrm{<br>}\mathrm{<br>}\mathrm{<br>}\mathrm{<br>}\mathrm{<br>}B$$C^{}$$2^{}$$=$$B$$D^{}$$2^{}$$+$$D$$C^{}$$2^{}$

$y^2 = x^2 + 12^2$

$$y2=52+122

$y^2 = 25 + 144$

$y^2 = 169$

$y = \sqrt{169}$

$y = 13\text{cm}$

Q2

Total sales = $867 \times 5.50$

$= Le 4,768.50$

Commission = Total sales $\times$

$= 4,768.50 \times 0.15$

$= Le 715.28$

The student received a commission of Le 715.28

OBJECTIVE QUESTIONS AND ANSWERS LOADING👇👇( After Sharing the Link Check back)

1. A

2. A

3. A

4. B

5. C

6. D

7. C

8. B

9. C

10. C

11. B

12. B

13. C

14. C

15. A

16. C

17. C

18. D

19. A

20. C

21. A

22. C

23. C

24. D

25. A

26. A

27. B

28. D

29. C

30. D

31. A

32. B

33. B

34. A

35. D

36. D

37. C

38. D

39. D

40. A