নৌকা ও স্রোত
1. Two boats on the opposite shores of a river start moving toward each other. When they pass each other they are 750 yards from one shoreline. They each continue to the opposite shore, immediately turn around and start back. When they meet again they are 250 yards from the other shoreline. Each boat maintains a constant speed throughout. How wide was the river?
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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Find the number of lead balls, each with a diameter of 1 cm, that can be made from a sphere of diameter 12 cm.
A boat can travel 36 km upstream in 5 hr. If the speed of the stream is 2.4 kmph, how much time will the boat take to cover a distance of 72 km downstream?
