BNU1501, Answers to May/June 2022 assignments. Exam questions and answers for 5 years. In addition, there are summary notes, formula sheets and exam preparation questions to guarantee a distinction

BNU1501-S1/ Ass 3/ 2022




BNU1501
Basic Numeracy
Department of Decision Sciences




Important Information

Assignment Solutions: Semester 1 2022
Assignment: 03

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, Question Correct Alternative Question Correct Alternative
1. 3 11. 3
2. 2 12. 1
3. 1 13. 2
4. 4 14. 3
5. 4 15. 4
6. 2 16. 3
7. 1 17. 1
8. 2 18. 4
9. 2 19. 1
10. 4 20. 2


Question 1
The side without a measurement can be calculated by subtracting 19𝑐𝑚 from 25𝑐𝑚 to get 6𝑐𝑚
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 = 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑎𝑙𝑙 𝑠𝑖𝑑𝑒𝑠
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 = 5 𝑐𝑚 + 19 𝑐𝑚 + 13 𝑐𝑚 + 6 𝑐𝑚 + 18 𝑐𝑚 + 25 𝑐𝑚
= 86 𝑐𝑚


Question 2


𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 𝑎 𝑟𝑒𝑐𝑡𝑎𝑛𝑔𝑙𝑒 = 2𝑙 + 2𝑤
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 𝑟𝑒𝑐𝑡𝑎𝑛𝑔𝑙𝑒 = 2 × 16 𝑚 + 2 × 4 𝑚
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 𝑜𝑓 𝑟𝑒𝑐𝑡𝑎𝑛𝑔𝑙𝑒 = 32 𝑚 + 8 𝑚 = 40 𝑚


Question 3
To get the length of the top and bottom part of the gray shaded figure. We subtract
2 × 6 𝑐𝑚 from the length of the large rectangle, i.e., 19 𝑐𝑚 to get 7 𝑐𝑚.
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 = 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑎𝑙𝑙 𝑠𝑖𝑑𝑒𝑠
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 = 5 𝑐𝑚 + 7 𝑐𝑚 + 6.5 𝑐𝑚 + 6.5 𝑐𝑚 + 7 𝑐𝑚
𝑃𝑒𝑟𝑖𝑚𝑒𝑡𝑒𝑟 = 32 𝑐𝑚