Multiple choice

Directions: In the following question, you have to find out the redundant statement(s) for determining the answer of the given question. A Movado watch is sold at 20% discount. Find the percentage gain. I. If the watch had been sold for Rs. 1500 less, there would have been no profit no loss. II. Had the watch been sold for Rs. 500 more, the gain would have been 15%. III. The cost price of the watch is Rs. 10,000.

  1. Only I or III

  2. Any one of them

  3. Either I or II

  4. Any two of them

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

Let the marked price be M and the cost price be C. The selling price is 0.80M, so the gain percentage depends on the ratio of C and M. Statement III gives C directly, so M can be found from the selling price equation. Statement I gives the equation 0.80M - 1500 = C, and statement II gives the equation 0.80M + 500 = 1.15C. Because statements I and III both independently establish the ratio of C to M, any one of the three statements is sufficient to find the gain percentage. The result is any one of them.

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