Three distinct single-digit numbers A, B and C are in Geometric Progression. If abs(x) for real x is the absolute value of x (x if x is positive or zero, and -x if x is negative), then the number of different possible values of abs(A + B - C) is

a)4
b)3
c)6
d)5

• For 3 single digit numbers to be in gp,...the options are (1,2,4);(2,4,8);(1,3,9)....,so the answer is 3...,option b>3
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