Question
There are three taps of diameter 2 cm, 3 cm, and 4 cm,
respectively. The ratio of the water flowing through them is equal to the ratio of the square of their diameters. The biggest tap can fill an empty tank alone in 81 min. If all the taps are opened simultaneously, then how long will the tank take (in min) to be filled?Solution
Ratio of efficiency of 3 taps: - (2) ²: (3) ²: (4) ² Þ 4: 9: 16 Total efficiency = 4 + 9 + 16 = 29 Given, tap with eff. 16 takes 81 min. Let, total work = 16 × 81 Total time (16× 81) /29= 1296/29 =44(20/29) minute.
Palladium on barium sulphate (Pd/BaSO₄) is also known as:
“Magnus Carlsen” is associated with which of the following games?
In 1932, who founded the 'All India Harijan Sangh', also known as 'Harijan Sevak Sangh'?
On whose advice did Gandhiji spend a year travelling around British India to know the people of India?
Consider the following statement about 2023 Gender Social Norms Index:
1. This Index is developed by the UNDP
2. This index covered 60 per...
When was the first ‘Minning Policy’ in Uttarakhand State declared?
India accounts for 45.8 million of the world’s missing females according to the State of World Population 2020 report of:
What is the traditional culinary delight from Odisha’s Mayurbhanj district that recently received a Geographical Indication (GI) tag?
In November 2025, a High-Level Committee chaired by ______ submitted its report on “Conflict of Interest, Disclosures and related matters in respect o...
Whose reign saw the largest extension of Delhi Sultanate?
Relevant for Exams:
