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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. If the value of \(\frac{{p - q}}{q} = \frac{4}{3}\)  .find p : q

  2. Half of the villagers of a certain village have their own houses. One-fifth of the villagers cultivate paddy. One-third of the villagers are literate. Four-fifth of the villagers are under 25 years of age. Which one of the following statements is certainly correct ?

  3. The two numbers are in the ratio of 9 ∶ 7 and the difference between of these two number is 6000. What is the sum of the two numbers?

  4. A certain number is added to each of a pair of numbers which are in the ratio 4 ∶ 5. The sum of the resulting numbers is 39 and their ratio (taken in the same order as mentioned above) is 6 ∶ 7. What is the number added?

  5. If (p + q) ∶ (q + r) ∶ (r + p) = 5 ∶ 6 ∶ 7 and p + q + r = 18, find the value of p ∶ q ∶ r

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