ট্রেন
1. Two stations P and Q are 110 km apart on a straight track. One train starts from P at7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25kmph. At what time will they meet?
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
A train overtakes two persons who are walking in the same direction to that of the train at 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. What is the length of the train?
A group of men decided to do a job in 4 days. But since 20 men dropped out every day, the job was completed at the end of the 7th day. How many men were there at the beginning?
Two trains of equal length are running on parallel lines in the same direction at 56 km/hr and 46 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:
Thrice the speed of a boat downstream is equal to four times the speed upstream. The ratio of its speed in still water to its speed in current is-
