Question
Which of the following is a parasitic weed on Pearl
millet?Solution
Striga are obligate root-parasitic plants of the major agricultural cereal crops, including millets, in tropical and semi-arid regions of Africa, Middle East, Asia, and Australia. Consequently, they cause severe to even complete losses in crop grain yield.
- The volumes of two hemispheres are in the ratio 1000:3375. Determine the ratio of their total surface areas. (Take π = 22/7)
Rajnish bought a rectangular canvas of size 44cm x 23cm and rolled it in such a way that it formed a cylindar with height as 23cm. What is the d...
A rectangular room measures 25 metres in length and has a perimeter of 78 metres. Calculate the total cost to carpet this room at a rate of Rs. 8 per sq...
Three cubes of metal whose edge are 6cm, 8cm and 10cm. respectively are melted and a single cube is formed. What is the length of the edge of the newly...
- Eight identical cubes of edge 4 cm are joined end to end. Calculate the total surface area of the solid formed.
The circumference of a circle is 44 cm and the length of the rectangle is 4 times the radius of the circle. Find the area (in cm2) of the rec...
A rectangular hall is 12 m long and 9 m wide. A carpet is laid leaving a uniform border of 1 m all around the inside. Find the area of the border.
The surface area of water in a swimming pool forms a rectangle with length 30m and breadth 12m. The depth of water increases uniformly from 1.4m to 2.6m...
A right circular cone has a slant height of 30 cm and its curved surface area is 1,320 cm². A cylindrical vessel has radius 25% more than the cone’s ...
Find the lateral surface area of a pyramid with a rectangular base measuring 12 meters by 8 meters and a slant height of 18 meters.
Relevant for Exams:
