A tap can fill a tank in 6 hours. After half the tank is filled, there more similar taps are opened. What is the total time taken to fill the tank completely ?
Created: 6 months ago | Updated: 2 weeks ago
Job Solution Palli Karma-Sahayak Foundation (PKSF) Palli Karma-Sahayak Foundation - Asst. Manager - 07.03.2014 গণিত
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