CBSE Class 10 Mathematics Worksheet
UNIT II: Algebra - Arithmetic Progression
1.
Find the sum of series 51+50+49+48....+21
2.
The first term of an AP is 6 and its common difference is -3. what is the 16th term of the AP?
A)
51
B)
39
C)
-39
D)
-42
3.
Find number of terms in following sequences: -1, -3, -5, -7,....; y = -151
4.
How many three digits numbers are such that when divided by 7, leaves a reminder 3 in each case ?
5.
Find 9th Term Of 1,4,7,10
6.
Determine an AP whose third term is 9 and when fifth term is subtracted from 8th term, we get 6.
7.
An AP consists of 60 terms. If the first and last terms are 7 and 125 respectively. Find 30th term.
8.
If the sum of first 7 terms of an A.P. is 49 and that of first 17 terms is 289, find the sum of n terms.
A)
n^2
B)
n^3
C)
n/2
D)
2n
9.
the sum of all three digit numbers which are divisible by 7 is
A)
73066
B)
70366
C)
70336
D)
73306
10.
Find number of terms in following sequences: 25, 50, 75, 100,....; y = 1000.
11.
The 8th term of an AP is 17 and its 14th term is 29. The common difference of the AP is
12.
If first term and common difference is given, then find AP Series: a = -1.5, d = -0.5
13.
Find 12th Term from the end of series: 1, 4, 7, 10,...88.
14.
Find 15th Term OF Following Sequence: am = -4m + 15
15.
which term of the AP 72, 63, 54,... is 0?
A)
8th
B)
9th
C)
10th
D)
11th
16.
Find the first five term of following given sequences: am = 3m+2
17.
The Sum of n terms of an A.P. is 5n2 – 3n. Hence find its 10th term
A)
376
B)
378
C)
374
D)
372
18.
If 4/5, a , 2 are three consecutive terms of an A.P., then find the value of a
A)
6/5
B)
8/5
C)
5/6
D)
7/5
19.
The sum of first 7 terms of an AP is 63 and the sum of its next term is 161. Find 28th term of the AP
20.
If the 7th term of an AP is 1/9 and 9th term is 1/7. Find the 63rd term.
CBSE Class 10 Mathematics Worksheet
UNIT II: Algebra - Arithmetic Progression
Answers
1.
1116
2.
Option C
3.
74
4.
129
5.
25
6.
5, 7, 9, 11.......
7.
65
8.
Option A
9.
Option C
10.
40
11.
Option B
12.
-1.5,-2,-2.5,-3...
13.
55
14.
a15 = -45
15.
Option B
16.
5,8,11,14,17
17.
Option B
18.
Option D
19.
57
20.
1
