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Question

M and N start a business. M invests ₹24,000 more than N for 3 months and N invests for 4 months. M's share is ₹962 more than that of N, out of a total profit of ₹7,696. Find the capital contributed by M.

This question was previously asked in
RRB NTPC 2024 CBT 1 Question Paper (28-Aug-2025) (Shift 3)
The correct answer is
₹57,600

Calculate Profit Shares

Let M's profit share be PM and N's profit share be PN. The total profit is ₹7,696.

  • The sum of their shares is the total profit:

    $ P_M + P_N = 7696 $

  • M's share is ₹962 more than N's:

    $ P_M = P_N + 962 $

  • Substitute the second equation into the first:

    $ (P_N + 962) + P_N = 7696 $

    $ 2P_N + 962 = 7696 $

    $ 2P_N = 7696 - 962 = 6734 $

    $ P_N = \frac{6734}{2} = 3367 $

  • Calculate M's share:

    $ P_M = 3367 + 962 = 4329 $

M's profit share is ₹4,329 and N's profit share is ₹3,367.

Establish Profit Ratio Equation

Let the capital invested by N be CN and by M be CM.

  • M invested ₹24,000 more than N:

    $ C_M = C_N + 24000 $

  • M invested for 3 months and N for 4 months. Profit is shared based on the product of capital and duration (Investment $\times$ Time).
  • The ratio of their profit shares is equal to the ratio of their investment products:

    $ \frac{P_M}{P_N} = \frac{C_M \times 3}{C_N \times 4} $

  • Substitute the calculated profit shares and the relation between capitals:

    $ \frac{4329}{3367} = \frac{(C_N + 24000) \times 3}{C_N \times 4} $

Simplify Ratio and Solve for N's Capital

First, simplify the profit ratio $\frac{4329}{3367}$. Both numbers are divisible by 481:

  • $ \frac{4329}{481} = 9 $
  • $ \frac{3367}{481} = 7 $
  • So, the ratio is $\frac{9}{7}$.

The equation becomes:

  • $ \frac{9}{7} = \frac{3(C_N + 24000)}{4C_N} $
  • Cross-multiply:

    $ 9 \times 4C_N = 7 \times 3(C_N + 24000) $

    $ 36C_N = 21(C_N + 24000) $

    $ 36C_N = 21C_N + 21 \times 24000 $

    $ 36C_N = 21C_N + 504000 $

  • Isolate CN:

    $ 36C_N - 21C_N = 504000 $

    $ 15C_N = 504000 $

    $ C_N = \frac{504000}{15} = 33600 $

N's capital contribution is ₹33,600.

Calculate M's Capital Investment

Use the relationship between M's and N's capital:

  • $ C_M = C_N + 24000 $
  • $ C_M = 33600 + 24000 $
  • $ C_M = 57600 $

M's capital contribution is ₹57,600.

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Similar Questions

  1. P, Q and R started a business investing amounts of ₹2,030, ₹1,700, and ₹1,010, respectively. If Q's share in the profit earned by them is ₹975. what is the difference in the profit (in ₹) earned by P and R?
  2. Ritu, Sameer, and Isha invest ₹1,190, ₹1,060, and ₹1,350, respectively, to start a business. If the profit at the end of the year is ₹1,640, then what is the share of Isha in the profit?
  3. Salman and Vivek together invested ₹33,900 in a business. At the end of the year, out of a total profit of ₹10,000, Vivek's share was ₹3,700. What was the difference between their investments?
  4. Two partners A and B started a business with the capitals of ₹12,000 and ₹18,000 respectively and made a profit of ₹1,800 at the end of the $1^{\text{st}}$ year. Find the profit share of B.
  5. A started a business with a capital of ₹15000, B joined him after 2 months with a capital of ₹20,000. The ratio in which the profit at the end of the year divided between A and B is:
  6. A, B and C divided the profit in the ratio of 3 : 4 : 5. If their total investment is ₹1,44,000, then B's investment will be:
  7. Anshuman and Kunal together invested ₹36,400 in a business. At the end of the year, out of a total profit of ₹19,500, Kunal's share was ₹6,300. What was the difference between their investments?
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  9. M and N started a business. M invested ₹48,000 more than N for 3 months, while N invested for 4 months. M's share is ₹498 more than that of N, out of a total profit of ₹1,494. Find the capital contributed by M.
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Important Questions from Partnership

  1. Kiran, Vimal and Naveen started a business by investing Rs. 1,35,000, Rs. 1,50,000 and  Rs. 1,65,000 respectively. Find the share of each (respectively), out of an annual profit of  Rs. 60,000.

  2. When the incoming partner cannot bring premium for goodwill, then the necessary adjustment for goodwill is done through which one of the following?

  3. A, B, C invest Rs. 20000, Rs. 30000, Rs. 40000 in a business. After one year, A withdrew his money but B and C continued for one more year. If the net profit after 2 years be Rs. 32000, then A’s share in the profit is:

  4. Manoj received Rs. 6000 as his share out of the total profit of Rs. 9000 which he and Ramesh earned at the end of one year. If Manoj invested Rs. 20000 for 6 months, whereas Ramesh invested his amount for the whole year, what was the amount invested by Ramesh?

  5. Three friends A, B, and C invested Rs. 20,000, Rs. 18,000, and Rs. 14,000, respectively in a business. If at the end of the year they got a profit of Rs. 7,800, then the profit share of B would be:

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