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Question

Find the 32nd term in the following series 3,7,11,.......

Options:
A .  120
B .  230
C .  220
D .  127
E .  None of these
Answer: Option D

 -  The 32nd term is 127

The given series is an arithmetic progression with the first term, a = 3 and common difference, d = 4. We need to find the 32nd term of the series.

The formula to find the nth term of an arithmetic progression is given by:

an = a + (n - 1) d

where,

an is the nth term of the AP

a is the first term of the AP

d is the common difference

n is the position of the term to be found

Substituting the given values in the formula, we get:

a32 = 3 + (32 - 1) 4

a32 = 3 + 31 x 4

a32 = 3 + 124

a32 = 127

Therefore, the 32nd term of the given series is 127, which is Option D.

To summarize the solution:

  • The given series is an arithmetic progression with a = 3 and d = 4.
  • The formula to find the nth term of an AP is an = a + (n - 1) d.
  • Substituting the given values in the formula, we get a32 = 3 + (32 - 1) 4.
  • Solving the expression, we get a32 = 127.
  • Hence, the correct answer is Option D.

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