Calculation of Mrs Bajaj's total cloth purchase:

To find out the total meters of cloth Mrs Bajaj bought, we need to add up the lengths of blue, yellow, and red cloth separately.

Blue Cloth:
- Mrs Bajaj bought 6m 25cm of blue cloth.
- 1 meter is equal to 100 centimeters.
- Therefore, 6 meters is equal to 600 centimeters.
- Adding 600 centimeters to 25 centimeters, we get a total of 625 centimeters.
- Converting 625 centimeters back to meters, we divide it by 100.
- 625 centimeters ÷ 100 = 6.25 meters.

Yellow Cloth:
- Mrs Bajaj bought 1m 75cm of yellow cloth.
- 1 meter is equal to 100 centimeters.
- Therefore, 1 meter is equal to 100 centimeters.
- Adding 100 centimeters to 75 centimeters, we get a total of 175 centimeters.
- Converting 175 centimeters back to meters, we divide it by 100.
- 175 centimeters ÷ 100 = 1.75 meters.

Red Cloth:
- Mrs Bajaj bought 8m 50cm of red cloth.
- 1 meter is equal to 100 centimeters.
- Therefore, 8 meters is equal to 800 centimeters.
- Adding 800 centimeters to 50 centimeters, we get a total of 850 centimeters.
- Converting 850 centimeters back to meters, we divide it by 100.
- 850 centimeters ÷ 100 = 8.5 meters.

Total Cloth Purchase:
- To find the total cloth purchase, we add up the lengths of all three types of cloth.
- 6.25 meters (blue cloth) + 1.75 meters (yellow cloth) + 8.5 meters (red cloth) = 16.5 meters.

Therefore, Mrs Bajaj bought a total of 16.5 meters of cloth.