Question
Two pipes A and B can fill a tank in 4 hours and 7 hours
respectively & a waste pipe C can empty in 8 hours. If pipes A , B & C are opened at 7am , 8am & 9am respectively, then at what time tank will be completely filled?Solution
A can Fill a tank in 4 hours and B can do the same in 7 hours & C can empty tank in 8 hrs. Let Total Work = LCM (4, 7 & 8) = 56 units Work done in 1st hr by A = 14 units Work done in 2nd hr by A & B = 14+8 = 22 units; Total work done in 2 hrs = 22 + 14 = 36 units, Now pending work = 56 – 36 = 20 units Work done in 3rd hr = 14 + 8 – 7 = 15 units Remaining work = 20 - 15 = 5 units Time taken to complete the remaining work = 5/15 = 1/3 = 20 min Hence work will be completed at = 7am + 3.20 = 10.20 am.
______ Test is used for checking integrity of Aseptic packaging material?
Which of the following is a dicotyledonous weed?
What does the conversion period in organic farming refer to?
Which of the following is the official certification mark for organic produce in India?
India’s agri export policy aims to double agricultural exports by which year?
The TBT agreement promotes which of the following principles?
Which online portal is used for FSSAI license application and compliance?
Which input helps improve soil organic carbon levels?
An acute or chronic inflammation of the mammary gland caused by physical, chemical and biological agents chiefly of bovines usually affecting the secret...
Which of the following is the apex body responsible for the promotion of agricultural exports in India?
Relevant for Exams:
