Question

if a person goes by 5km per hour it comes early 15mins to office where as if it goes 3km per hour it goes late by 5 minutes then find the distance
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Answer 1

Answer:

2.5 km

Step-by-step explanation:

Distance= x km

Time difference is 15 min+5 min= 20 min= 1/3 hr

Time at 5 km/hr speed= x/5

Time at 3 km/hr speed= x/3

• x/5=x/3-1/3
• 3x=5(x-1)
• 3x=5x-5
• 2x=5
• x=5/2= 2.5 km

Distance is 2.5 km