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Sol: Let the number of boys be x. Then, number of girls = 2 x ∴ x + 2 x = 60 or x = 20 So, number of boys = 20 and number of girls = 40 Number of students behind Rohan in rank = 60 – 17 = 43 Number of girls ahead of Rohan in rank = 9 Number of girls behind Rohan in rank = 40 – 9 = 31 ∴ Number of boys behind Rohan in rank = 43 – 31 = 12
Rhinoceros beetle is common pest of:
Empty barrels, plastic containers or styrofoam bodies in cage culture can be used for the purpose?
In honey bees, ______________ enzyme converts By crose into dextrose and levulose.
Who is the proponent of the Lime potential concept?
Crop able to survive under high (pH-5) acidic conditions is:
The yearly sequence and spatial arrangement of crops or of crops and fallow on a given area is known as
What are the symptoms of damage caused by the Brown Plant Hopper (BPH) in rice?
The length of time that a herbicide remains active in the soil is called
Which of the following is not matched correctly?
The first areca nut to get the Geographic Indications (GI) tag is the Sirsi Supari.
In which State is this supari grown?
