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Question

15th term of the A.P. x - 7, x - 2, x + 3 ... is:


A

x + 73

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B

x + 83

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C

x + 53

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D

x + 63

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Solution

The correct option is D

x + 63


a1=x-7

a2=x-2

common difference=d=x-2-(x-7)=5

15th term:

a15= a1+(n-1)d

a15=x-7+(15-1)x5

=x+63


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