A man can go on a motor boat with a speed of 15 km/hour in still water to a certain upstream point and come back to the starting point in a river which flows at a speed of 5km/hour. Find the average speed of motor boat for total journey?
Let, the speed of boat be b km/hour and speed of current be s km/hour Average speed = 2xy/(x+y) (here, x is speed of downstream and y is speed of upstream) = (2 (b+s)(b-s))/((b+s+b-s)) = (b2 - s2)/b = (225 - 25)/15 = 200/15 = (40/3) km/hour Alternate Method :- 
Average speed = (Total distance covered)/(total time taken) = (2×60)/9 = 120 /9 = 40/3 kmph
Which of the following statements is/are NOT CORRECT with reference to the amendments made by the government for direct listing at IFSC by the local com...
Which fintech platform is going to invest approximately Rs 100 crore in Gujarat International Finance Tec-City (GIFT City) for the development of a Glob...
Consider the following about G20 Finance and Central Bank Deputies (FCBD) meeting:
I. The first G20 Finance and Central Bank Deputies (FCBD) meet...
Which country is hosting the 20th Asian Women’s Handball Championship in December 2024?
Which satellite has Iran recently launched into orbit using the satellite carrier Qassed?
Samsung Semiconductor India Research (SSIR) has partnered with the ______to promote research and development in the field of on-chip Electrostatic Disch...
What was the theme of World Radio Day 2022?
The International Earth Sciences Olympiad (IESO) 2024, where India won multiple medals, was held in which country?
Consider the following statement about National Food Security Act (NFSA) 2013.
I. To provide for food and nutritional security in the human life ...
The World Crafts Council International is considering ______ as a potential nominee for World Craft City due to its significant craft clusters.
