Question:
A72 km
B36 km
C48 km
D18 km
Answer:
The initial speed of the teacher is 24 km/hr Final speed = 24× 125/100 ⇒ 30 km/hr ⇒ The ratio of speed = 24 : 30 ⇒ 4 : 5 ⇒ Time ratio = 5 : 4 ⇒ 1 unit = 9 minutes ⇒ 5 unit = 45 minute or 3/4 hour ⇒Distance = 24 × 3/4 ⇒ 18 km
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