1. The ratio of 10 km per hour to 30 km per hour is

2. The ratio 1 : 4 converted to percentage is

3. The ratio 4 : 25 converted to percentage is

4. The fraction \(\frac{2}{5}\) converted to percentage is

5. The fraction \(\frac{1}{8}\) converted to percentage is

6. Find the simple interest on Rs 1000 for 2 years at 8% per annum.

7. = 100 × 1 ×(3 × 12) = 3600 paise = Rs 36

8. There are 1275 trees in Chaudhary Farm. Out of these 36% trees are of fruits. How many trees of fruits are there in Chaudhary Farm?

9. The quantity of protein in a particular variety of pulse is 25%. Find the amount of protein in 4 kg of pulse.

10. In a miRsture the amount of zinc is 45%. Find the amount of zinc in 400 g miRsture.