Once upon a time, there were four friends named A, B, C, and D. They needed to cross a bridge to get to their destination, but the bridge was old and rickety and could only hold two people at a time.
To make things more difficult, the bridge was also very dark and the friends had only one torch between them to light the way. The friends knew that the torch had limited battery life and would only last for 17 minutes before it went out.
Here’s how long it takes each person to cross the bridge:
A can cross the bridge in 1 minute.
B can cross the bridge in 2 minutes.
C can cross the bridge in 5 minutes.
D can cross the bridge in 10 minutes.
The friends knew that when two people crossed the bridge together, they had to move at the pace of the slower person. They also knew that they had to conserve the torch’s battery life as much as possible.
The friends needed to figure out a plan to get everyone across the bridge in the fastest possible time before the torch went out. Can you help them come up with a solution?
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You entered a room, of 34 people.
बीस माले बिल्डिंग में एक लड़की टॉप फ्लोर पे रहती थी।जब भी उसे लिफ्ट से ऊपर जाना होता वो अधिकतर सिर्फ 15 फ्लोर तक ही जाती और बाकी के 5 फ्लोर सीढ़ियों से चली जाती।
A man who lived on the top floor of a twenty story building had to go up and down daily for work, and of course, for food and the other necessities.
In a country, there are over 100 streets. Street 1 is named First Street, street 2 is named Second Street, and so on and so forth.