How many plants will be there in a circular bed whose outer edge measure 30 cms, allowing 4 cm2 for each plant ?
None of these
The slope of the line Joining A (-4. 6) and B (5, 3) is
The slant height of a conical mountain is 2.5 km and the area of its base is 1.54 km2. The height of the mountain is
The area of the triangle whose vertices are (a, a), (a + 1, a + 1), (a + 2, a) is :
In the adjoining figure, AC + AB = 5 AD and AC - AD = 8. The area of the rectangle ABCD is:
cannot be answered
What is the distance between the c intercept and the r intercept of the line given by the equation?
2r = 6 - f?
The currencies in countries X and Y are denoted by Xs. and Ys. respectively. The exchange rate in 1990 was 1 Xs. = 0.6 Ys. The price level in 2006 in X and Y are 150 and 400 respectively with 1990 as a base of 100. The exchange rate in 2006, based solely on this purchasing power parity consideration, is 1 Xs.=
A tank of capacity 165 liters, has N taps, numbered from 1 to N fitted to it. At the start of the nth minute, where 1≤ n ≤ N, the tap numbered n, which fills the tank at the rate of n liters per mite, is opened. If it takes exactly N minutes to fill the tank in his manner , find N.
If the area of an equilateral triangle is 24√3 sq. cm, then its perimeter is
Triangle ABC is right angled at A and has a perimeter of 136. A circle is drawn from A point X on AB such that it is tangent to BC and AC.The radius of the circle is 17 . If BX=m/n where m and n are relatively prime.Then m + n =?
Spheres A and B have their radii 40 cm and 10 cm respectively. The ratio of the surface area of A to the surface area of B is
The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq.cm. What is the length of the rectangle?
If the perimeter of a rectangle is 90, what is the area of the rectangle?
What will be the area of a semi-circle of 14 metres diameter?
154 sq metres
77 sq metres
308 sq metres
22 sq metres
Water flows at the rate of 10 meters per minute from a cylindrical pipe 5 mm in diameter. How long will it take to fill up a conical vessel whose diameter at the base is 40 cm and depth 24 cm?
48 min. 15 sec
51 min. 12 sec
52 min. 1 sec
At what coordinates does the graph of 4c+ 6 = d - 1 intersects the c axis?
(0 , -2)
If the area of a circle decreases by 36%, then the radius of a circle decreases by
In two triangles, the ratio of the areas is 4 : 3 and ratio of their heights is 3 : 4. Find the ratio of their bases
16 : 9
9 : 16
9 : 12
16 : 12
The radii of two cones are in the ratio 2:1, their volumes are equal. Find the ratio of their heights
The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm. The radius of the square is
A solid metallic spherical ball of diameter 6 cm is melted and recast into a cone with diameter of the base as 12 cm. The height of the cone is
The curved surface area of a right circular cylinder of base radius r is obtained by multiplying its volume by
What is the slope of the line given by the equation 4g - 5 = 7 - 2e?
What is the least number of square tiles required to pave the floor of a room 15 cm 17 cm long and 9 m 6 cm broad?
XYZ is an equilateral triangle with vertices X (6, -2), Y (2, - 1) and Z (4, -2). If ZA is one of its medians find the length of the median
What is the slope of the line given by the equation 3w - 7 = 6 - 2y?
If the perimeter of a rectangle and a square, each is equal to 80 cm and the difference of their areas is 100sq.cm. The sides of the rectangle are
25 cm, 15 cm
28 cm, 12 cm
30 cm, 10 cm
35 cm, 15 cm
A cylindrical vessel of radius 4 cm contains water. A solid sphere of radius 3 cm is lowered into the water until it is completely immersed. The water level in the vessel will rise by
If the area of a square increases by 69%, then the side of the square increases by
The height of the Qutub Minar is 230 metres. It is planned that a stairway from ground to the topof the Minar would be made by arranging cube shaped boulders in a step like fashion. A man firstplaces a boulder on the ground. He then steps on to it, and then throws one boulder down such thatit touches the side of the previous bolder, and then places one over the new one. He then climbsonto the last boulder thus placed and continues to do the same to create steps right to the top, witheach of his step being 1 metre. If each boulder measures 1 cubic metre, how many boulders arerequired in all ?