Question
Pipe A can fill a tank in 45 minutes while pipe B can
fill it in ____ minutes. There’s a leak in the tank which can empty it in _____minutes. When both the pipes are open, due to the effect of the leak, the tank gets filled in 30 minutes. Which of the following values can fill the blanks in the same order? I. 60, 80 II. 70, 50 III. 45, 90 IV. 36, 60Solution
From I: Portion of tank filled in a minute = 1/45 + 1/60 - 1/80 = (16 + 12 – 9)/720 = 19/720 Hence, I does not follow From II: Portion of the tank filled in a minute 1/45 + 1/70 – 1/50 = (70+45-63)/3150 = 52/3150 Hence II also does not follow. From III: Portion of the tank filled in a minute. = 1/45 + 1/45 – 1/90 = (2 + 2 – 1)/90 = 3/90 = 1/30 From IV: Portion of the tank filled in a minute = 1/45 + 1/36 – 1/60 = (4 + 5 – 3)/180 = 6/180 = 1/30 Hence only III and IV satisfy the given blanks.
Which of the following element is non-essential but useful for plants?
 Who is known as Father of White Revolution?
According to CRIDA how much is the Depth at which Deep Ploughing is done?Â
Water requirement is equal to
Middle lamella, the outmost layer in plant cell wall is made up of
Given below are wo statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The probe of a neutron moisture ...
Whiptail of cauliflower is due to
The Prakritik Kheti Khushshal Kissan Yojana (PKKKY) was launched by the ……………………………government to promote organic / Zero Budget Nat...
The term “hypersensitive response” in plant pathology was coined by:
Which one of the following crop yields both oil and fiber?
Relevant for Exams:
