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Several items each with its own profit or loss percent: overall profit or loss

This type of question, asked 4 times: 25 Jul 2023 S2, 24 Sep 2024 S1, 13 Sep 2025 S2, 15 Sep 2025 S3. All 4 questions below, oldest first.

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  1. Question 1

    25 Jul 2023 S2

    67
    Mona purchased two sets of jewellery for ₹4,000 each. She sold these sets of jewellery, gaining 8% on one and loosing 6% on the other. Calculate her total loss or gain in this whole transaction.

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  2. Question 2

    24 Sep 2024 S1

    71
    Samreen sells a keyboard for ₹1,260 at a profit of 25%25\%, and another keyboard for ₹1,440 at a loss of 10%10\%. What is her total gain or loss percentage?

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  3. Question 3

    13 Sep 2025 S2

    63
    An antique dealer sold three items, A, B, and C, with their selling prices in the ratio 4:5:64 : 5 : 6. He suffered a loss of 10%10\% on item A, made a profit of 50%50\% on item B, and broke even (no profit, no loss) on item C. What was his approximate percentage gain or loss in the overall deal?

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  4. Question 4

    15 Sep 2025 S3

    62
    A seller bought three different types of mobile covers, C1, C2, and C3. The ratio of their selling prices was 3:4:5. He made a profit of 25% on C1, 10% on C2, but incurred a loss of 20% on C3. What was his approximate percent gain or loss in the entire transaction?

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