Question

Raja walks 18/5 km in 1 hour. How far he walk in 9/4 hours ?

Answer 1

$\frac{18}{5} km = 1hour \\ \frac{9}{4} \times 60 = 9 \times 15 = 135min \\ 2hour15min \\ \frac{18}{5} \times 1000 = 18 \times 200 = 3600mitre \\ 3600m = 3.600km \\ 1hour = 3.600km\\ 2hour = 3.600km \times 2 = 7.200km \\ 60min = 3.600km \\15 min = 3.600 \times \frac{15}{60} = 3.600 \times \frac{1}{4} \\ \frac{3.600}{4} = 0.9km \\4 hour15min = 7.200 + 0.900 = 8.100km$