Question
The speed of current is 10 km/h. What will be the
respective downstream speed and upstream speed of a boy rowing a boat, if one sixth of the distance covered going downstream in a certain time is equal to the distance covered going upstream in the same time?Solution
Let the speed of boy in still water be X km/h. And the speed of current = 10 km/h Downstream speed = (X + 10) km/h Upstream speed = (X – 10) km/h Let time be ‘t’ hours. ⇒ [(X + 10) t]/6 = (X – 10) t ⇒ X + 10 = 6X – 60 ⇒ X = 14 km/h Downstream speed = 14 + 10 = 24 km/h Upstream speed = 14 – 10 = 4 km/h
GI tag is the abbreviation of Geographical Indications tags in India. It came into force with effect from 15th September 2003. Which 3 states have the ...
What is the reaction called in which only one product is produced due to the reaction of two or more reactants?
Pradhan Mantri Jan Arogya Yojana (PMJAY) provides medical services with health insurance coverage of up to INR ____ per family per year.
The Union Cabinet has extended the period of Pradhan Mantri Garib Kalyan Ann Yojana (PMGKAY) till ______?
Chutka Atomic Power Plant is situated in which of the following states?
Where was the Convocation Ceremony of the 146th course of the National Defence Academy (NDA) held on May 23, 2024?
The Chambal, Hindon and Tons rivers are tributaries of the river:
When is the Birsa Munda Birth Anniversary celebrated in India?
Which state won the title of Santosh Trophy of 2022?
The interval between two sessions of parliament must not exceed ________.
Relevant for Exams:
