What BEST can be concluded about the total number of units of milk the three women had in the beginning?
Explanation:
Consider the solution to first question of this set.
Number of units of milk with Ganga = 1/2 (Hour 1) + 2 (Hour 2) + 2 (Hour 3) + 1 (Hour 3) + 1 (Left-over) = 7/8 units Kaveri = 1 (Hour 1) + 1 (Hour 2) + 2 (Hour 3) + 1/2 (Hour 3) + 1 (Left-over) = 6/7 units Narmada = 1 (Hour 1) + 2 (Hour 2) + 1 (Hour 3) + 1 (Hour 3) + 0 (Left-over) = 5 units
∴ Number of units of milk initially could be 18 or 19 or 20.
Hence, option (a).
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