Pregunta
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4 Andreas, Isla and Paulo share some money in the ratios \( 3: 2: 5 \) The total amount of money that Isla and Paulo receive is \( £ 76 \) more than the amount of money that Andreas receives. Andreas buys a video game for \( £ 48.50 \) with some of his share of the money. Work out how much money Andreas has left from his share of the money when he has bought the video game.

Ask by Hanson Tucker. in Egypt
Jan 23,2025

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Andreas has £8.50 left after buying the video game.

Solución

To determine how much money Andreas has left after purchasing the video game, let's break down the problem step by step. ### 1. **Understand the Ratios** - **Andreas**, **Isla**, and **Paulo** share money in the ratio **3:2:5**. - Let the common multiplier be **\( x \)**. - **Andreas** receives: \( 3x \) - **Isla** receives: \( 2x \) - **Paulo** receives: \( 5x \) ### 2. **Establish the Relationship** - The total amount that **Isla** and **Paulo** receive together is \( 76 \) pounds more than what **Andreas** receives. - This can be written as: \[ 2x + 5x = 3x + 76 \] \[ 7x = 3x + 76 \] \[ 4x = 76 \quad \Rightarrow \quad x = 19 \] ### 3. **Determine Each Person's Share** - **Andreas**: \( 3x = 3 \times 19 = 57 \) pounds - **Isla**: \( 2x = 2 \times 19 = 38 \) pounds - **Paulo**: \( 5x = 5 \times 19 = 95 \) pounds *Verification*: - **Isla + Paulo**: \( 38 + 95 = 133 \) pounds - **Andreas**: \( 57 \) pounds - Difference: \( 133 - 57 = 76 \) pounds (which matches the given condition) ### 4. **After Purchasing the Video Game** - **Andreas** spends \( 48.50 \) pounds on a video game. - Money left: \( 57 - 48.50 = 8.50 \) pounds **Answer:** £8.50

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Let's denote the shares of Andreas, Isla, and Paulo as \( 3x, 2x, \) and \( 5x \) respectively. According to the problem, the total amount received by Isla and Paulo is £76 more than Andreas' share. We can express this as: \[ 2x + 5x = 3x + 76 \] This simplifies to: \[ 7x = 3x + 76 \] Subtracting \( 3x \) from both sides, we get: \[ 4x = 76 \] Dividing both sides by 4, we find: \[ x = 19 \] Now we can calculate how much money each person receives: - Andreas: \( 3x = 3 \times 19 = £57 \) - Isla: \( 2x = 2 \times 19 = £38 \) - Paulo: \( 5x = 5 \times 19 = £95 \) Next, we determine how much money Andreas has left after buying the video game for £48.50: \[ \text{Money left} = 57 - 48.50 = £8.50 \] So, Andreas has £8.50 left from his share of the money after buying the video game.

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