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Interactive NAT Grade 10 Reviewer (Mathematics) Part 3
Interactive NAT Grade 10 Reviewer (Mathematics) Part 3
Admin
June 26, 2023
1➤
What is the next term in the geometric sequence 4, -12, 36, . . .?
-42
-52
-72
-108
2➤
Find the common difference in the arithmetic sequence 6, 4, 2, 0, . . .
½
1
2
-2
3➤
What is the 10th term of the arithmetic sequence 2, 5, 8, 11, . . . ?
27
29
28
31
4➤
Which term of the arithmetic sequence 4, 1, -2, -5, . . . is -29 ?
9th term
10th term
11th term
12 term
5➤
The fourth term of an arithmetic sequence is9 and the 15th term is 31. What is the common difference ?
2
3
-2
-3
6➤
What is the first term of the arithmetic sequence in #5 ?
7
5
3
2
7➤
What is nth term of the arithmetic sequence 7, 9, 11, 13, 15, . . .?
. an = 3n + 4
an = 4n + 3
an = n + 2
an = 2n + 5
8➤
What is the next term in the harmonic sequence 1/11 , 1/15, 1/19, 1/23 , . . . ?
27
25
1/25
1/27
9➤
What is the 10th term of the geometric sequence -1, 2, -4, 8, -16, . . . ?
512
-512
1024
-1024
10➤
What is the next term of the Fibonacci sequence 1, 1, 2, 3, 5, 8, . . . ?
13
16
19
20
11➤
Which set of numbers is an example of a Fibonacci sequence ?
A. 2, 6, 18, 54
½, ¼, 1/6, 1/8
0, 2, 3, 5, 8, 13
1, 1, 2, 3, 5, 8, 13
12➤
If three arithmetic means are inserted between 11 and 39, what is the second arithmetic mean?
18
25
32
46
13➤
If three geometric means are inserted between 1 and 256, what is the third geometric mean?
64
32
16
4
14➤
Find the arithmetic mean of 8 and 22.
10
12
14
15
15➤
What must be the value of k so that 5k – 3, k + 2 and 3k – 11 will form an arithmetic sequence?
3
-3
2
-2
16➤
Find the 8th term of a geometric sequence whose 3rd term is 27 and the common ratio is 3.
2187
6561
19683
59049
17➤
The 6th term of the sequence whose general term is an = 3n - 7
11
12
13
14
18➤
For the sequence an = 2n – 1, find the sum of the first 5 terms.
23
24
25
26
19➤
Find the sum of the first 10 terms of the arithmetic sequence whose first term is 5 and whose last term is 40.
225
200
450
400
20➤
Find the sum of integers from 1 and 100.
5050
4646
2550
2500
21➤
What is the common ratio of the geometric sequence 8, -4, 2, -1 . . . ?
-2
2
-1/2
½
22➤
Find the positive geometric mean between 4 and 100.
10
20
30
40
23➤
Which of the following is the sum of the multiples of 3 from 15 to 48?
315
360
378
396
24➤
Find the sum of the first 5 terms of the sequence 3, 6, 12, . . .
93
94
95
96
25➤
Find k so that the numbers 2k + 1, 3k + 4 and 7k + 6 form a geometric sequence.
2; -1
-2; 1
2; 1
-2; 120
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