The curve for which the normal at any point (x, y) and the line joining the origin to that point form an isosceles triangle with the x-axis as the base is
A number was increased by 20% and then again it was increased by 20%. By what percent should the increased number be reduced so as to get back the original number?
Five boys are sitting in a row. A is on the right of B. E is on the left of B, but to the right of C. If A is on the left of D, who is sitting in the middle?
Slow response time in computer systems has been found to reduce job satisfaction and increase stress and mental strain. On the other hand, very fast interaction to an uncomfortable level where users feel they must always respond to the system promptly. The optimum response time will depend on the task. Variability in systems response time and system crashes may also cause stress in users. It was reported in one of the studies that the workers in an insurance company worked very quickly in the morning to try and complete as much work as possible, in case the system failed in the afternoon. In addition, when response times were usually long, workers experienced anxiety and uncertainty as they could not be sure if the long response times were due to high load on the system, or whether the system had failed.
Inference: Most system failures had occurred in the afternoon in the insurance company.
Gaeta walks 20 m towards north, then she walks 12 m towards the South. Now, she walks 6 m towards east. How far and in which direction is she from the starting point?
Study the following information carefully and answer the question:
A, B, C, D, E, F, G, and H are sitting around a circle facing the center. B is second to the right of H and third to the left of A. D is not an immediate neighbor of either B or H and is second to the right of F. C is fourth to the right of G. Who is third to the right of E?
Below is given a passage followed by the inference which can be drawn
from the facts stated in the passage. You have to examine the inference
in the context of the passage and decide upon its degree of truth or
falsity.
Passage:
As in case of absolute number of illiterates, the actual numberof illiterate
females is also increasing with time and faster than the number of male
illiterates. More so in the backward states, in the rural areas, and among
scheduled castes andscheduled tribes. The correlation between female
illiteracy and infant mortality is equally clear. It is found that mortality was
highest in the case of illiterate mothers both in urban and rural areas but
much higher in the latter.
Inference:
The illiteracy rate is higher among females as compared to that of
males.
How many such digits are there in the number 6837941, each of which is as far away from the beginning in the number as when the digits are arranged in descending order within the number?
Let AB be a chord of a circle $x^2+y^2 = r^2$ subtending a right angle at the centre. Then, the locus of the centroid of the triangle PAB as P moves on the circle is
If $A(cos\alpha, sin\alpha)$, $B(sin\alpha, -cos\alpha)$, C(1,2) are the vertices of a $\Delta ABC$, then as $\alpha$ varies, the the locus of its centroid is,
A cylinder of radius 12cm contains water to a depth of 20cm. A spherical iron ball is dropped into the cylinder and thus the level of water is raised by 6.75cm. The radius of the ball is
A and B can complete a work in 12 days, B and C complete a work in 15 days and C and A can complete a work in 20 days. Find in how many days they all together can complete a work?
A right circular cone with radius R and height H contains a liquid which evaporates at a rate proportional to its surface area in contact with air (proportionally constant= k>0 ). Find the time after which the cone is empty.
A car covers 15 km, 20 km, 30 km and 12 km at speeds of 20 km/hr, 30 km/hr, 40 km/hr and 30 km/hr respectively The average speed of the car for the total journey is:
Two numbers are selected randomly from a set S={1,2,3,4,5,6} without replacement one by one. The probability that minimum of the two numbers is less than 4 is :
The probability of a shooter hitting a target is $\frac{3}{4}$. How many minimum numbers of times must he/she fire so that the probability of hitting the target at least once is more than 0.99?
A line intersects lines 5x-y-4=0 and 3x-4y-4=0 at point A and B. If a point P(1, 5) on the line AB is such that AP: PB=2:1(internally), then point A is,
Straight lines are drawn by joining m points on a straight line to n points on another line. Then excluding the given points, the number of point of intersection of the lines drawn is (no two lines drawn are parallel and no three lines are concurrent).
Two cars travel from city A to city B at speeds of 42 km/hr and 60 km/hr respectively. If one car takes 2 hours lesser time than the other car for the journey, then the distance between city A and city B is?