self Maths Puzzle

Find the number of combinations of (a, b, c) if LCM (a, b) = 1000, LCM (b, c) = 2000, LCM (c, a) = 2000

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self Other Question

The value of a diamond is directly proportional to the square of its weight. If a diamond weighing 4kg breaks into 2 pieces, its total value decreases by 37.5%. Find the weights of the two pieces. Maximum power of 2 is 4 in c. and either a or b will take 3 and other will take 0, 1, 2, 3?