Question
A boat, whose speed in still water is 25% more than the
speed of the current, covers 810 km downstream in _____ hours. The speed of the boat in still water is ______ km. The values given in which of the following options will fill the blanks in the same order in which is it given to make the statement true: I. 18, 23 II. 12, 37.5 III. 18, 30Solution
Downstream speed of the boat = x + 1.25x = 2.25x km/hr For I: 2.25x = 810/18 => 2.25x = 45 => x = 20 Therefore, speed of boat in still water = 1.25x = 25 km/hr Therefore, I is false. For II: 2.25x = 810/12 => 2.25x = 67.5 => x = 30 Therefore, speed of boat in still water = 1.25x = 37.5 km/hr Therefore, II is true. For III: 2.25x = 810/18 => 2.25x = 45 => x = 20 Therefore, speed of the boat in still water = 1.25x = 25 km/hr Therefore, III is false.
Which institution was declared as a deemed university by the Ministry of Education?Â
Which event did Union Minister Annapurna Devi launch at Mahatma Mandir in Gandhinagar?
What is the purpose of the National Automated Fingerprint Identification System (NAFIS), which recently won the Gold Award for Excellence in Government ...
How many cities were initially selected under the Smart Cities Mission in 2015?
As per Union Budget 2025-26, under the new tax regime, up to what annual income is an individual exempt from paying any income tax?
Recently new Crab Species named Ghatiana Dwivarna has been discovered from Which state?
According to the CMIE (Centre for Monitoring Indian Economy) data, the unemployment rate in India fell to _______ in May due to a decline in the labor p...
From which mountain range does the Luni River originate?
What is the initial corpus of the Agri-SURE fund unveiled by NABARD to promote innovation in agriculture and rural development?
____________ Government is set to launch an open-air classroom programme Paray Shikshalaya (Neighbourhood Schools) for primary and pre-primary students.
