On subtracting 8 metric tonne (mt) 50 kilogram from 12 metric tonne 8 quintals we get

Question

Accepted Answer

To solve the problem of subtracting 8 metric tonnes (mt) 50 kilograms (kg) from 12 metric tonnes 8 quintals, we need to perform the subtraction step by step, ensuring that we convert all units to a common base for accurate calculation.

1. **Convert all measurements to kilograms:**
   - 1 metric tonne = 1000 kilograms
   - 1 quintal = 100 kilograms

Therefore:
   - 12 metric tonnes = 12 x 1000 = 12000 kilograms
   - 8 quintals = 8 x 100 = 800 kilograms
   - Total for 12 metric tonnes 8 quintals = 12000 + 800 = 12800 kilograms

- 8 metric tonnes = 8 x 1000 = 8000 kilograms
   - 50 kilograms remains as is

Total for 8 metric tonnes 50 kilograms = 8000 + 50 = 8050 kilograms

2. **Subtract the two totals:**
   - 12800 kilograms (from 12 mt 8 quintals) - 8050 kilograms (from 8 mt 50 kg) = 4750 kilograms

3. **Convert the result back to metric tonnes, quintals, and kilograms:**
   - 4750 kilograms can be broken down as follows:
     - 4 metric tonnes = 4 x 1000 = 4000 kilograms
     - Remaining = 4750 - 4000 = 750 kilograms
     - 7 quintals = 7 x 100 = 700 kilograms
     - Remaining = 750 - 700 = 50 kilograms

Therefore, the result is 4 metric tonnes, 7 quintals, and 50 kilograms.

This matches Option 2: 4 mt 7 quintal 50 kg.

**Explanation for why other options are incorrect:**

1. **Option 1: 3 mt 8 quintal**
   - This option does not account for the correct conversion and subtraction of kilograms. The calculation shows that the result is more than 3 metric tonnes.

2. **Option 3: 4 mt 8 quintal 50 kg**
   - This option suggests an additional quintal, which would mean an extra 100 kilograms. The correct calculation shows only 750 kilograms remaining, which is 7 quintals and 50 kilograms.

3. **Option 4: 3 mt 8 quintal 50 gm**
   - This option is incorrect because it suggests a result of 3 metric tonnes, which is less than the calculated 4 metric tonnes. Additionally, the inclusion of grams is unnecessary and incorrect in this context.

Thus, Option 2 is the correct answer, as it accurately reflects the subtraction and conversion process.