20110129: 6 AM QUIZ (III) Factors & Multiples



 

 

       
      1. S1-01 Ishani Saha 1/29/2011 6:36:54 4 errors Q2, Q3, Q5, Q12
      2. S1-01 Lee Kai En 1/29/2011 6:55:51 1 error Q6
      3. S1-01 Owen Ong Chau Siong 1/29/2011 6:57:37 2 errors Q2, Q5
      4. S1-01 Ng Ying Liang 1/29/2011 7:00:52 4 errors Q3, Q4, Q6, Q12
      5. S1-01 Gladys Foo 1/29/2011 7:22:10 2 errors Q4, Q5
      6. S1-01 Matthew Yap 1/29/2011 8:06:03 4 errors Q4, Q5, Q6, Q8
      7. S1-01 Ryan Tan Zheng Ning 1/29/2011 8:51:10 2 errors Q4, Q8
      8. S1-01 Poon Jia QI 1/29/2011 8:52:18 2 errors Q3, Q12
      9. S1-01 Lee Qian Hui 1/29/2011 8:57:17 4 errors Q5, Q6, Q8, Q12
      10. S1-01 wang ruoyu 1/29/2011 9:24:11 6 errors Q2, Q3, Q4, Q5, Q10, Q12
      11. S1-01 Sandy Khoo Ping Ping 1/29/2011 9:38:58 4 errors Q3, Q6, Q5, Q8
      12. S1-01 Liew Wei Siew 1/29/2011 10:01:18 4 errors Q5, Q6, Q8, Q12
      13. S1-01 Ding Nina Lin 1/29/2011 10:10:51 2 errors Q5, Q6
      14. S1-01 Jonathan Foo Chee Yong 1/29/2011 10:48:06 4 errors Q5, Q6, Q8, Q10
      15. S1-01 Wang Yi Chieh 1/29/2011 10:49:55 4 errors Q1, Q2, Q6, Q12
      16. S1-01 Chung Yi De 1/29/2011 11:40:18 2 errors Q6, Q10
      17. S1-01 Abhimanyu Arora 1/29/2011 12:29:57 ALL CORRECT
      18. S1-01 Lovy Lim 1/29/2011 17:31:08 3 errors Q5, Q6, Q12
      19. S1-01 Lam Jiajun    1/30/2011 9:09:13    3 errors    Q2, Q3, Q4
      20. S1-01 Cheng Shu Yu Mavis    1/30/2011 20:17:49    5 errors    Q3, Q4, Q8, Q10, Q12
      21. S1-01 Lim Hao En Toby Gail    1/30/2011 23:53:33    3 errors    Q3, Q10, Q12
      22. S1-01 Chan Shawn Kit    1/31/2011 7:34:28    2 errors    Q5, Q12
      ONE PERSON DID NOT RESPOND TO THE QUIZ
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        Answers to QUIZ Word Problems #1 to #5

        1. 14 tables in each row
        • Use square root
        2. 15625 cubes
        • 1. Convert the lengths to common unit (i.e. cm)
        • 2. Find the number of small cubes that can be lined up along the side.
        • 150/6 = 25 cubes per side
        • No. of cubes = 25^3 = 15625
        3. 14352 cubes
        • 1. Find HCF, hence the common factor of no. of cubes could be lined up along the sides.
        • 2. Calculate the no. of cubes for each side by dividing the length by the 'length of the smaller cube'.
        • 3. Hence the total number of cubes.
        • HCF of 312, 184, 128 is 8
          No. of cubes by the length = 39
          No. of cubes by the breadth = 23
          No. of cubes by the height = 16
          Total no. of cubes = 14352
        4. 64 m
        • 1. Find area of the triangle
        • 2. Using the area, find the length of square
        • 3. Find perimeter
        • Area of triangle = 256
          Length of square = sqrt(256) = 16
          Perimeter = 64
        5. Date: 15 April 2011
        • 1. Find LCM
        • 2. Count from the day after 1 Jan 2011
        • LCM of 8, 13 = 104 Jan = 31-1 = 30 days (reason being both planes took off on 1 Jan, so we start counting from 2 Jan); Feb = 28 days; Mar = 31 days Total = 89 days (short of 15 days)

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