Question: The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?
A) 200
B) 250
C) 300
D) 350
Answer: B) 250
আরো পড়ুন:
The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?
![গান্ধী স্মৃতি জাদুঘর কোন জেলায় অবস্থিত? [আপডেট ২০২৪]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjB1tQ8P2jBnHzMfdIuwkk_aUjQf4Nl1zK_TkID2jd0PV_bADQdniuxA1-NuLYivzCfN7_qVLLYLvMVSWPaxlfJHMBU9S0_cDaeBIph8MP1T8M9MNVAgfzWuI7ZN9R3kYWeaQtUHNsUXFkGJ3sqgzyi1q8mocQ9thWcDJAfloftQLi3jiQx0KntUaxxYw/w100/%E0%A6%97%E0%A6%BE%E0%A6%A8%E0%A7%8D%E0%A6%A7%E0%A7%80%20%E0%A6%B8%E0%A7%8D%E0%A6%AE%E0%A7%83%E0%A6%A4%E0%A6%BF%20%E0%A6%9C%E0%A6%BE%E0%A6%A6%E0%A7%81%E0%A6%98%E0%A6%B0%20%E0%A6%95%E0%A7%8B%E0%A6%A8%20%E0%A6%9C%E0%A7%87%E0%A6%B2%E0%A6%BE%E0%A6%AF%E0%A6%BC%20%E0%A6%85%E0%A6%AC%E0%A6%B8%E0%A7%8D%E0%A6%A5%E0%A6%BF%E0%A6%A4_%20mcqatoz.png)
![বাংলাদেশে মোট কতটি থানা আছে? [আপডেট ২০২৪]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOpRxyYtsRGeSuCh1aeU9GGlLQutiTDWVqfXKfqTjbL0czamIoslm7FHw3TKn923vJM4o3qodGvjfwnTsH3J2bFrqUqEZguk9lvgvTVmvO8WpxkxGRqNErYhYNwDLJIXFlOi-srnrxSFjkM-FmVPaQc20z8CgBEZsBVwwKgO_9dEVTJUb2aEP1Fd6sHg/w100/%E0%A6%AC%E0%A6%BE%E0%A6%82%E0%A6%B2%E0%A6%BE%E0%A6%A6%E0%A7%87%E0%A6%B6%E0%A7%87%20%E0%A6%AE%E0%A7%8B%E0%A6%9F%20%E0%A6%95%E0%A6%A4%E0%A6%9F%E0%A6%BF%20%E0%A6%A5%E0%A6%BE%E0%A6%A8%E0%A6%BE%20%E0%A6%86%E0%A6%9B%E0%A7%87.png)
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