Question
Which of the following is not used in organic
farming?Solution
Atrazine is a chemical herbicide
A right square pyramid has a square base of side 10 cm and vertical height 12 cm. Find:
(i) its volume,
(ii) its slant height,
(iii...
Find the minimum length of a rubber band which can tie three circular pipe of radius 21 cm?
Imagine that you have three identical cubes, each with a side length of 8 cm. These cubes are aligned and combined along their sides to form a single, e...
2[sin x – cos x]4 + 6[sin x + cos x]2 + 5[sin6 x + cos6 x]= ?
A box has 80 Red, 40Blue and 40 Black Balls. 25% of Red Balls and 50% of Blue Balls are taken away, percentage of Black balls at present is
If ratio of interior & exterior angle of a regular polygon is 4:5, then number of sides of the polygon is
The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?
A wire is bent to form a square whose sides are of 99 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circl...
A race track is in the shape of a rectangle with length of 28 metres and area of 5600 m2. A car takes 20 seconds to make one lap around the p...
A solid right circular cylinder of radius 7 cm and height 10 cm is melted and recast into right circular cones each of radius 7 cm and height 5 cm. How ...
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