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Question

The total amount of 49 is distributed among A, B, and C. A receives 5 more than B and B receives 4 more than C. What is the ratio of their shares ?

The correct answer is
21:16:12

Shares Ratio Calculation Method

Let the shares of A, B, and C be represented by $A$, $B$, and $C$ respectively.

We are given the following information:

  • The total amount is 49: $A + B + C = 49$.
  • A receives 5 more than B: $A = B + 5$.
  • B receives 4 more than C: $B = C + 4$.

Expressing Shares in Terms of One Variable

We can express the shares of A and B in terms of C:

  • Since $B = C + 4$.
  • Substitute this into the equation for A: $A = (C + 4) + 5 = C + 9$.

Now, all shares are defined relative to C.

Calculating Individual Shares

Substitute the expressions for A and B into the total amount equation:

$(C + 9) + (C + 4) + C = 49$

Combine the terms:

$3C + 13 = 49$

Solve for C:

$3C = 49 - 13$

$3C = 36$

$C = \frac{36}{3}$

$C = 12$

Now find B and A:

  • $B = C + 4 = 12 + 4 = 16$.
  • $A = B + 5 = 16 + 5 = 21$.

Determining the Ratio

The shares are $A=21$, $B=16$, and $C=12$.

The ratio of their shares $A:B:C$ is $21:16:12$.

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Important Questions from Simple Ratios

  1. The ratio of two numbers is 9 : 5. If 8 is added to the larger number and 4 is subtracted from the smaller number, the greater number becomes twice the smaller number. The larger number is:

  2. Divide 500 into two parts such that the ratio of one to the other are in 5 : 3?

  3. The ratio of the number of men and women in a company is 5 : 4. If the number of men and women increase by 16% and 15%, respectively, then what will be the new ratio of men and women ?

  4. The monthly salaries of an officer and a clerk are in the ratio 11 : 4. If the monthly salary of the officer increases by ₹7,000 and that of the clerk by ₹3,000, then the ratio becomes 19 : 7. What was the initial salary (in ₹) of the officer? 

  5. If X : Y = 7 : 5 and Y : Z = 7 : 11, then what is the ratio of X : Y : Z?

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