UPSC NDA I 2022 Mathematics Solved Paper

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Question : 25 of 120

Marks: +1, -0

If ‌

a+b

2

,b,‌

b+c

2

are in HP, then which one of the following is correct ?

[NDA-I 2022]

a,b,c are in AP
a,b,c are in GP
a+b,b+c,c+a are in GP
a+b,b+c,c+a are in AP

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