Question
The speed of a boat in still water is 25 km/hr. If the
boat covers 240 km in upstream in 12 hours, then find the time taken by the boat to travel 177 km in downstream.Solution
Let the speed of the boat in still water and the speed of the current be βxβ km/hr and βyβ km/hr, respectively Upstream speed of the boat = (x β y) = 240/12 = 20 km/hr Or, 25 β y = 20 Or, y = 25 β 20 = 5 km/hr Therefore, downstream speed of the boat = 25 + 5 = 30 km/hr Required time taken = 177/30 = 5.9 hours
PM- Ucchatar shiksha Abhiyan focuses on which of the following points?
How much money was allocated to Rural Infrastrucutre Development Fund (RIDF) for the year 2021-22?
UMANG (Unified Mobile Application for New-age Governance) developed by Ministry of Electronics and Information Technology (MeitY) and __________ to driv...
Atal Tinkering Labs (ATL) are established in schools (Grade VI-XII) managed by Government, local body or private trusts/society. The schools selected fo...
Which of the following Statements is/are True?
I- WHO is an independent agency owned by some of the top pharma companies across the globe.
Which of the following statements accurately reflect the interconnectedness of the Sustainable Development Goals (SDGs)?
Statement A: Achievin...
What can be the possible steps to prevent inflation?
I. Change the monetary policy.
II. Controlling the money supply.
III. Higher I...
What is the primary aim of the National Curriculum Framework for School Education (NCF-SE)?
As per Economic Survey 2021-22, Gross fixed capital formation exceeded pre-pandemic levels and is estimated to have grown by ____ in 2021-22?
World Bank Group’s twin goals are ending extreme poverty by ________ and boosting shared prosperity of the poorest _________ of the population in ...