Arithmetic Progression

Choose the correct answer from the given four options:
In an AP, if d = –4, n = 7, a_n = 4, then a is

• 6
• 7
• 20
• 28

Choose the correct answer from the given four options:
In an AP, if a = 3.5, d = 0, n =101 ,then a_n will be 

• 0
• 3.5
• -3.5
• 1

Choose the correct answer from the given four options:
The 10th term of the AP: 5, 8, 11, 14, ... is

• 32
• 35
• 38
• 25

Choose the correct answer from the given four options:
In an AP if a = –7.2, d = 3.6, a_n = 7.2, then n

• 2
• 3
• 4
• 5

Choose the correct answer from the given four options:
The 21st term of the AP whose first two terms are –3 and 4 is

• 17
• 137
• -137
• 127

Which term of the AP: 21, 42, 63, 84,... is 210?

• 9^th
• 10^th
• 11^th
• 12^th 

If the common difference of an AP is 5, then what is a₁₈ – a₁₃ ?

• 5
• 15
• 25
• 10

What is the common difference of an AP in which a₁₈ – a₁₄ = 32?

• 4
• 6
• 8
• 10

If the 2nd term of an AP is 13 and the 5th term is 25, the common difference is 

• 12
• 4
• 3
• 5

If 7 times the 7th term of an AP is equal to 11 times its 11th term, then its 18th term will be 

•  7 
•  11 
•  18 
• 0