Question
Stem application in cotton is followed for the
management of:Solution
In this method, sucking pest incidence was controlled by the stem application of systemic insecticides of Monocrotophos 1:4 ratio at 20 days after sowing and Imidacloprid 200 SL with water in 1:20 ration at 40 and 60 days after sowing. Within three days of application the population of sucking pests was reduced.
The perimeter of a rectangular field is 60 metres and its area is 137.5 m2 . What is the length of the diagonal of this field?
Each side of a rhombus is 20cm long and the length of one of its diagonals is 24cm, then find the area of the rhombus.(in cm 2 )
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The surface area of the two spheres are in the ratio 4:9. Their volumes will be in the ratio.
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The volume of water measured on a rectangular field 400m 200m is 8000 . Find the depth (amount) of rain that has fallen.
The cost of painting the walls of a room 8 meter long and 10 meter wide at Rs 22.5 square per meter is 7290. What is the height of the room?
