Megha hought a small cardboard piece for 90 paise and a packet of coloured pens for Rs 30 Find the ratio of the price of the carboard piece to the price of the coloured pens.

Answer

To find the ratio of the price of the cardboard piece to the price of the colored pens, we will follow these steps:

### Step 1: Identify the prices
- Price of the cardboard piece = 90 paise
- Price of the colored pens = Rs 30

### Step 2: Convert the prices to the same unit
Since 1 rupee = 100 paise, we need to convert Rs 30 into paise:
- Rs 30 = 30 × 100 paise = 3000 paise

### Step 3: Write the ratio
Now we can write the ratio of the price of the cardboard piece to the price of the colored pens:
- Ratio = Price of cardboard : Price of colored pens
- Ratio = 90 paise : 3000 paise

### Step 4: Simplify the ratio
To simplify the ratio, we divide both sides by the common factor, which is 90:
- 90 paise ÷ 90 = 1
- 3000 paise ÷ 90 = 33.33 (approximately)

So, the simplified ratio is:
- Ratio = 1 : 33.33

### Step 5: Convert to whole numbers
To express the ratio in whole numbers, we can multiply both parts by 3 to eliminate the decimal:
- Ratio = 3 : 100

### Final Answer
The ratio of the price of the cardboard piece to the price of the colored pens is **3 : 100**.

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