Question
Two taps can fill a tank in 18 hours and 24 hours,
respectively. A waste pipe can empty the tank in 36 hours. If all three pipes are opened together, how much time will it take to fill the tank 75% of its capacity?Solution
Rate of the first tap = 1/18 per hour Rate of the second tap = 1/24 per hour Rate of the waste pipe = -1/36 per hour Net rate = (1/18) + (1/24) - (1/36) LCM of 18, 24, and 36 = 72 Net rate = (4/72) + (3/72) - (2/72) = 5/72 Time to fill the tank fully = 1 ÷ (5/72) = 72/5 = 14.4 hours Time to fill 75% = 14.4 × 0.75 = 10.8 hours Correct Option: a.
Water governance was articulated 1)/as an art and inherited 2) / by generation and generation 3)/ as an integral part of life 4) /None of these ...
- Find out the error according to the grammar and context of the given sentences. If there is no error, mark option 5, i.e. No error. (Ignore the punctuation...
Given below is a sentence with or without an error. The error, if any, is in one part of the sentence. Choose the correct part which contains ...
"This question consists of a sentence which is divided into four parts numbered (1) to 4. only one part of the sentence is not acceptable in standard w...
The chairman is accessible for staff members, especially those with a personal problem.
They agreed to repair the damage freely of charge.
The reported move by capital markets regulator Securities and Exchange Board of India (Sebi) to summarily(1) / Â restrict investment in equity derivativ...
Den’s sandal label is a miniatures masterclass in the enduring politics of power .Â
...(A) the company reported a profit this quarter,Â
(B) expenses increased significantly,
 (C) leading to concerns about sustainability
...With the loss, India have put themselves in (1)/ a precarious position and need to win (2)/ at least 4 out of their next 6 Test matches to ensure (3)...
