Question
An inlet pipe can fill an empty tank in 40 minutes
whereas an outlet pipe can empty the fully filled tank in 80 minutes. Find the time taken by both the pipes together to fill half of the empty tank.Solution
Let the total capacity of tank be 80 litres (LCM of 40 and 80)
Efficiency of inlet pipe = (80/40) = 2 litres/minute
Efficiency of outlet pipe = (80/80) = -1 litre/minute
Required time = (0.5 × 80) ÷ (2 - 1) = 40 minutes
What was the revised economic growth forecast for India in FY2024-25 as per the latest RBI report?
What was Tripura’s literacy rate when it achieved full functional literacy in 2025?Â
Which international body did Moldova recently join to promote renewable energy and sustainability?
The Chief of the Army Staff (CoAS) of which country was conferred the rank of Honorary General of the Indian Army in December 2024?
Why did the Indian government scrap the windfall tax on domestic crude oil and fuel exports?
Which enforcement action did the RBI take against Sonepat Central Cooperative Bank?
National Education Day commemorates the birth anniversary of which prominent Indian educationist?
In which river will India’s first solar-powered boat be launched?
- What is the total financial outlay of the Modified Command Area Development and Water Management (M-CADWM) sub-scheme?
What is the focus of the India-Australia air-to-air refueling agreement?
Relevant for Exams:
