Question

Jenny covers a distance of 12.8km in 2 hours 8 minutes on bicycle. find her speed in km/h.​

Answer 1

Given,

Distance = 12.8 km

time taken = 2 hrs 8 min

= 2 hrs + $\frac{8}{60}$ hrs

= 2 hrs + $\frac{2}{15}$ hrs

= $\frac{30 + 2}{15}$ hrs

= $\frac{32}{15}$ hrs

We know that,

Speed = Distance / time

=> $\frac{12.8}{32/15}$

=> $\frac{12.8}{32 × 15}$

=> $\frac{128}{32 × 10 × 15}$

=> 0.027 km/hr