Question

1. A car covers a certain distance in 50 minutes if it runs at 45 km per hour. How much time willi
tale to cover the same distance at a speed of 30 km per hour ?​

Answer 1

Answer:

1 hour 15 minutes

Step-by-step explanation:

$50 min. = \frac{50}{60} hour = \frac{5}{6} hour$

Distance = 45 km/h × (5/6) h = 75/2 km = 37.5 km

Time = 37.5 km ÷ 30 km/h = 1.25 h = $1\frac{1}{4} hour$ = 1 hour 15 minutes