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Question

The first term of an AP whose 6th terms is 5 and the 10th terms is 9 is ____________.

A
4
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B
10
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C
0
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D
6
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Solution

The correct option is D 0
The gernal form of A.P is an=a+(n1)d
5=a+(61)d=a+5d
9=a+(101)d=a+9d
solving the two we get
d=1
a+51=5
a=0

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