Income of Rahim is Rs 25, 000 per month and that of suresh is Rs 30, 000 per month. If the monthly expenditure of each of then is Rs 21,000 find the ratio of their savings .

Answer

To solve the problem step by step, we will calculate the savings of Rahim and Suresh and then find the ratio of their savings.

### Step 1: Identify the income and expenditure of Rahim and Suresh.
- **Rahim's Income**: Rs 25,000
- **Suresh's Income**: Rs 30,000
- **Monthly Expenditure for both**: Rs 21,000

### Step 2: Calculate the savings for Rahim.
Savings can be calculated using the formula:
\[ \text{Savings} = \text{Income} - \text{Expenditure} \]

For Rahim:
\[ \text{Savings}_{\text{Rahim}} = 25,000 - 21,000 \]
\[ \text{Savings}_{\text{Rahim}} = 4,000 \]

### Step 3: Calculate the savings for Suresh.
Using the same formula for Suresh:
\[ \text{Savings}_{\text{Suresh}} = 30,000 - 21,000 \]
\[ \text{Savings}_{\text{Suresh}} = 9,000 \]

### Step 4: Write the ratio of their savings.
Now we have:
- Rahim's savings = Rs 4,000
- Suresh's savings = Rs 9,000

The ratio of their savings can be expressed as:
\[ \text{Ratio} = \frac{\text{Savings}_{\text{Rahim}}}{\text{Savings}_{\text{Suresh}}} = \frac{4,000}{9,000} \]

### Step 5: Simplify the ratio.
To simplify the ratio, we can divide both numbers by 1,000:
\[ \text{Ratio} = \frac{4}{9} \]

### Final Answer:
The ratio of their savings is **4:9**.

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