Question
A man can row at 36 km/hr in still water. In a stream
which is flowing at 12 km/hr, it takes him 3 hrs to a place and back. How far is the place?Solution
Let distance= x km, Rate upstream = 36 - 12 = 24 km/hr Rate downstream = 36 + 12 = 48 km/hr. ∴ Time taken upstream= x/24 and Time taken downstream= x/48 ∴ x/24 + x/48 = 3 ⇒ 3x/( 48) = 3 ⇒ x = 48 km.
- If 6th March 2005 was Monday, then what was the day on 6th March 2004?
If it was Sunday on 1 st February 2008, then what will be the day on the 25th October 2008?
- If it was Saturday on 4 th February 1967, then what was the day on 29 th August 1967?
- What is the angle between the hour hand and minute hand at 9:28hrs, when taken in clockwise direction from the minute hand?
Find the angle between the hour and minute hand of the clock when the time is 3:25 AM?
If it was Thursday on 18 th February 1954, then what was the day on 22 nd November 1954?
In a factory all Tuesdays and Saturdays are offs. If a month starts with a Tuesday and has 31 days then how many offs will be there in that month?
- It was Thursday on February 8, 2024, then, what will be the day on February 8, 2028?
- The year next to 2014 will have the same calendar as that of the year _________.
- What will be the angle formed between the hour hand and minute hand of a clock at 6:48am?