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Question

P, Q and R invested a sum in the ratio of 12 : 82 : 38, respectively. If they earned a total profit of ₹3,510 at the end of year, what is the difference between the shares of Q and R?

This question was previously asked in
RRB NTPC 2024 CBT 1 Question Paper (28-Aug-2025) (Shift 3)
The correct answer is
₹1,170

Profit Sharing Calculation

The investments of P, Q, and R are in the ratio 12 : 82 : 38.

The total profit earned is ₹3,510.

We need to find the difference between the profit shares of Q and R.

Steps to Find the Difference

  1. Calculate the sum of the ratio parts:

    Total parts = $12 + 82 + 38 = 132$

  2. Find the difference in the ratio parts between Q and R:

    Difference in parts = Q's parts - R's parts

    Difference in parts = $82 - 38 = 44$

  3. Calculate the value of one ratio part:

    Value per part = Total Profit / Total Parts

    Value per part = $\frac{₹3,510}{132}$

  4. Calculate the difference in profit shares:

    Difference in Profit = Difference in parts $\times$ Value per part

    Difference in Profit = $44 \times \frac{₹3,510}{132}$

    Simplify the expression:

    Difference in Profit = $\frac{44}{132} \times ₹3,510

    Difference in Profit = $\frac{1}{3} \times ₹3,510

    Difference in Profit = ₹1,170

Therefore, the difference between the shares of Q and R is ₹1,170.

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  4. A and B start a business by investing Rs. 1,00,000 and Rs. 1,50,000 respectively. Find the respective share of each out of a total profit of Rs. 24, 000.

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