8. Make a generalization based on the numerical sequence below :


      5 = 2 + 3(1)2
    14 =2 + 3(2)2

    29 =2 + 3(2)2

    50 =2 + 3(2)2

A 2 + 3n , n= 1,2,3,…

B 2 + 3n2 , n= 1,2,3,…

C n + 3n2 , n = 1,2,3,…

D n – 2n2 , n = 1,2,3,…



9. Which of the generalization below represents the numerical sequence -2 , -6 , -10 ,… where n= 1,2,3,…

A 2 – 4n

B 3 – 4n

C 2n2 – 1

D -1 – 3n



10. Which of the following is the numerical sequence for 3n2 – 1 with n= 1, 2, 3,…?

A 2, 11 , 26 , 47 ,…

B 4 , 35 , 80 , 143 ,…

C 2 ,11 , 27 , 47 ,…

D 10, 11,26 , 48 ,…

chapter 4 : Mathematical Reasoning

1. Choose a statement.
    A Please
    B 2 + 1 = 4
    C (a + b + c )
    D Dont stand there !

2. " If water boils, the temperature is 100 degree celcius". The above statement is
    A a premise
    B a conclusion
    C an arguement
    D an implication

3. The process of making a conclusion based on the premises is known as
     A logic
     B converse
     C arguement
     D statement

4. " All multiples of six are divisble by 3. 36 is a multiple of 6. Hence, 36 is divisible by 3." Which of the
    following is the premise ?
    A All multiples of 6
    B 36 is divisible by 3
    C 36 is a multiple of 6
    D All multiples divisible by 3

5. " All those who are wearing school uniforms are students. Abu was not wearing the school uniform." What
    is the conclusion ?
    A Abu is a student
    B Abu is not a student
    C Abu does not have a uniform
    D Those who are not wearing school uniform are not students

6. All multiples of 4 are divisible by 2. Eight is multiple of 4, then
    A 8 is divisible by 2
    B 8 is divisible by 4
    C 10 is divisible by 2
    D 8 is not divisible by 4

7.  Premise 1 : All odd numbers are not divisible by 2
     Premise 2 : 13 is an odd number.
    
     Conclusion : _____________________________________

     state the conclusion .
     A 13 is divisible by 2
     B 13 is not divisible by 2
     C 13 is not an even number
     D Odd numbers are not divisible by 2