Question

. In an A.P. if A16 – A12 = 16 then its common difference is​

Answer 1

Answer:

Answer is 4.

Step-by-step explanation:

a + 15d - (a + 11d) = 16

a + 15d - a - 11d = 16

15d - 11d = 16

4d = 16

d = 4

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Answer 2

Step-by-step explanation:

A16-A12=16

=a+15d-(a-11d) =16

=a-15d-a+11d =16

=-4d=16

=d=16/-4

=d=-4

Therefore the common difference is -4

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