Interactive NAT Grade 10 Reviewer (Mathematics) Part 1

1➤ If 1, -1/2, ¼, -1/8 is a geometric sequence, what is the common ratio?

½-½¼-¼

2➤ What is the twentieth term of the arithmetic sequence 21, 18, 15, 12, ... ?

-39 -36178

3➤ A display of cans on a grocery shelf consists of 20 cans on the bottom, 18 cans in the next row, and so on in an arithmetic sequence, until the top row has 4 cans. How many cans, in total, are in the display?

100108116124

4➤ The following are examples of Fibonacci sequence EXCEPT:

0, 1, 1, 2, 3, 52, 3, 5, 8, 13192, 16, 208, 2241, 4, 7, 10, 13

5➤ Which among the following is NOT a geometric sequence?

5, 10, 20, 40-11, 22, -44, 88 2, 6, 18, 543, 8, 13, 18

6➤ If 1, -1/2, ¼, -1/8 is a geometric sequence, what is the common ratio?

½ -½¼-¼

7➤ What is the sum of the first 30 terms of the arithmetic sequence 50, 45, 40, 35?

-6752756753675

8➤ Find the sum of the geometric sequence 3, 6, 12, 24, 48, 96.

189-189190-190

9➤ Which among the following is the harmonic sequence of a sequence 3, 8, 13, 18?

-3, -8, -13, -181/3, 1/8, 1/13, 18 3.0, 8.0, 13.0NONE OF THE ABOVE

10➤ What is the next term of the sequence 3, 4, 7, 11, 18, 29?

46474849

11➤ Which of the following is an arithmetic sequence?

21, 18, 15,…-6, -2, 2…4, 2, 080, 20, 5…

12➤ Find the 27th term of the arithmetic sequence -4, -1, 2, 5, 8.

70727476

13➤ QAR, RAS, SAT, TAU, _______.

UAVUATTASTAT

14➤ What is the sum of the eleventh of the arithmetic sequence 7, 12, 17, 22, ... ?

1542957951090

15➤ What is the thirty-second term of the arithmetic sequence -12, -7, -2, 3, ... ?

143148153167

16➤ Find the tenth term of the arithmetic sequence 1, 6, 11, 16…

40424246

17➤ What is the common difference of the sequence 3, 11, 19, 27, 35?

-8 8 -1414

18➤ The fifth term of an arithmetic sequence is 11 and the tenth term is 41. What is the first term?

-19-13-96

19➤ What is the fiftieth term of the arithmetic sequence 3, 7, 11, 15…?

53151199203

20➤ Which among the following is the harmonic sequence of a sequence 3, 8, 13, 18?

-3, -8, -13, -181/3, 1/8, 1/13, 183.0, 8.0, 13.0NONE OF THE ABOVE

21➤ If 1, -1/2, ¼, -1/8 is a geometric sequence, what is the common ratio?

½-½¼-¼

22➤ What is the fiftieth term of the arithmetic sequence 3, 7, 11, 15…?

53151199203

23➤ What is the tenth term of the geometric sequence 1, 2, 4, 8, ... ?

5122561024128

24➤ What is the sum of the first 30 terms of the arithmetic sequence 50, 45, 40, 35?

-6752756753675

25➤ Find the 7th term of the sequence 2, 6, 18, 54, ...

4374583265618748

26➤ What is the sum of the first 30 terms of the arithmetic sequence 50, 45, 40, 35?

-6752756753675

27➤ If 1, -1/2, ¼, -1/8 is a geometric sequence, what is the common ratio?

½-½¼-¼

28➤ What is the sum of the eleventh of the arithmetic sequence 7, 12, 17, 22, ... ?

1542957951090

29➤ The following are examples of Fibonacci sequence EXCEPT:

0, 1, 1, 2, 3, 5 2, 3, 5, 8, 13 192, 16, 208, 2241, 4, 7, 10, 13

30➤ What is the 12th term of the geometric sequence 5, 10, 20, 40, ... ?

2048010240512040960

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