The points with coordinates (2a,3a), (3b...

The points with coordinates `(2a,3a), (3b,2b)` and `(c,c)` are collinear

A

for no value of a, b, c

B

for all values of a, b, c

C

if a, `(c )/(5)`, b are in HP

D

if `a, (2c)/(5), b` are in HP

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The correct Answer is:

D

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