CBSE Class 10 Mathematics Arithmetic Progression MCQs Set A

Question : The sum of first n natural numbers is
(a) 𝑛/2
(b) 𝑛+1/2
(c) 𝑛(𝑛+1)/2
(d) 𝑛(𝑛+1)(𝑛+2)/2

Answer : C

Question : The 27^th positive odd number is:
(a) 50
(b) 51
(c) 52
(d) 53

Answer : D

Question : The next term of the AP: √8, √18, √32….is
(a) 5√2
(b) 5√3
(c) 3√3
(d) 3√5

Answer : A

Question : If the first term of an AP is p and the common difference is q, its 10th term is
(a) p + 9q
(b) p + q
(c) p + 10q
(d) 9p + q

Answer : A

Question : The list of numbers -10, -6, -2, 2, ….is
(a) an AP with d = -16
(b) an AP with d = 4
(c) an AP with d = -4
(d) not an AP

Answer : B

Question : The common difference of an AP whose n^th term is 3n+7
(a) 2
(b) 3
(c) 4
(d) 5

Answer : B

Question : The common difference of an AP is 5, then the value of a18 –a13 is:
(a) 5
(b) 20
(c) 25
(d) 30

Answer : C

Question : If 18 , 𝑎, b, −3 are in AP , then find 𝑎+b
(a) 15
(b) 10
(c) 25
(d) - 15
Answer : A

Question : How many three- digit numbers are divisible by 7?
(a) 117
(b) 143
(c) 128
(d) 158
Answer : C

Question : If the nth term of an AP is (2𝑛+1)then find the sum of its first three terms.
(a) 15
(b) 10
(c) 25
(d) - 15
Answer : A

Question : If 7^th term of an AP is 34 and 13^th term is 64 then 18^th term is
(a) 89
(b) 87
(c) 90
(d) 88
Answer : A

Question : Write next terms of an AP √2,√8,√18,√32 ....
(a) √40
(b) √50
(c) √64
(d) √112
Answer : B

Question : If an A.P. if a= 4 n= 7 , d= 4 then an is
(a) 28
(b) 6
(c) 20
(d) 7
Answer : A

Question : The common difference of an AP is 8. Find the difference of its 20^th and 15thterm
(a) 42
(b) 40
(c) 63
(d) 53
Answer : B

Question : The 21st term of an AP . whose first two terms are – 3 and 4 is
(a) 17
(b) 143
(c) 137
(d) 153
Answer : C

Question : In an A.P. if a = -7.2 d=3.6 a_n = 7.2 then n is
(a) 5
(b) 3
(c) 1
(d) 4
Answer : A

Question : If the common difference of an A.P. is 3, then find 𝑎₂₀−𝑎₁₅
(a) 15
(b) 13
(c) 25
(d) 35
Answer : A