Subject
Quantitative Aptitude
Topic
Speed & Distance
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?(একজন ব্যক্তি 5 মিনিটে 600 মিটার দূরত্ব অতিক্রম করে প্রতি ঘন্টায় তাঁর গতিবেগ কত কি.মি. ?)
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?(একজন ব্যক্তি 5 মিনিটে 600 মিটার দূরত্ব অতিক্রম করে প্রতি ঘন্টায় তাঁর গতিবেগ কত কি.মি. ?)
ক)
3.6খ)
7.2গ)
8.4ঘ)
10Explanation
1ঘন্টা = ৬০ মিনিট 5 মিনিটে অতিক্রম করে = 600 m = (600/1000) k.m. ∴ 1 " " " = {600/(1000×5)} k.m. ∴ 60 " " " = {(600×60)/(1000×5)} = 7.2 k.m. লোকটির গতিবেগ = 7.2 km/hrRelated questions
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