Question
Tap A and Tap B fill a drum of volume 117 liters in 3
minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the cistern 11.7 minutes. Find x-y.Solution
                    A+B         B Time         3     :   11.7 Efficiency        11.7   :    3                          39  :    10 Efficiency of A+B = 39 Efficiency of B = 10 Efficiency of A = 39 – 10 = 29 Ratio = x:y = 29:10 So, x – y = 29 – 10 = 19
The 15% more trees could be accommodated in the ?
Which of the following helps to retain color of meat
Which color sticky traps are used for aphids and white fly?
Crop growing season with AE < PE/4Â
Hydrographic Survey deals with the mapping of:
Which of the following tree is incorrectly matched with their common names?
Sodic soil is also known as:
What is the process that describes the changes in whole communities as different species colonize an area and change its environment?
Reagents required for determination of soil organic matter in laboratory.
A.  Potassium dichromate
B.  Ferrous ammonium sulphate
..._______ is known as biological reduction
