S = {1, 2, ..., 5n}, where n is a natural number. If R is a subset of S such that the average of no two elements of R is n or an integral multiple of n, then the maximum number of elements in R is:
1. 4n-1
2.2n
3.3n
4.3n-1 (Answer)
Can someone explain the 38th sum.
What is the probability of 5 pair of shoes of different brands being kept in a straight line such that no 2 shoes of same leg are adjacent to each other?
- 1/126
- 4/9
- 6/126
- 5/16
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FIND THE MINIMUM VALUE OF
|X-2| - |2X-12| + |X-8|. X IS A REAL NUMBER
Q)How many whole number solutions are possible for a+b+c+d=30 such that a>b>c>d? Can someone please give the approach?
Remainder when 5^81 is divded by 3125 .
Approach please.
Three boys A, B and C start running at constant speeds from the same point P along the circumference of a circular track. The speeds of A, B and C are in the ratio 5:1:1. A and B run clockwise while C runs in the anticlockwise direction. Each time A meets B or C on the track he gives them a card. What is the difference in the number of cards received by B and C if A distributes 33 cards in all?
Q. Amitabh covered a distance of 96km two hours faster than he had planned to. this he achieved by travelling 1km more every hour that he intended to cover in 1h15min. what was the speed at which Amitabh travelled during the journey? a.16kph b.26kph c.36kph d.30kph Procedure please
A spherical ball is colored with two colors blue and orange. The ratio of area covered by blue and orange colors on the whole ball is 2:3. The ratio of area for the blue and orange colors on the uper half part of the ball is 1:2. Find the ratio of area covered by blue and orange colors on the lower half.
What is the probablity that 5 pairs of shoes of different color being kept in a straight line such that no 2 shoes of same color are adjacent to each other?
How many positive real solutions does the equation X^13+11X^7+20X^5+3X-247=0 have?
A task was given to a manager who had 14 members in his team. At any moment of time exactly 10 members worked simultaneously on the task. Since, the manager had to be fair in his work allocation, he allocated the task among the workers in such a way that each member worked on the task for exactly 't' minutes. If the task was completed in 210 minutes, then find the value of 't'. (Assume the efficiency of each of the members of the team is the same)
Approach please.
The length of the minute hand of analogclock is equal to the length of the hour hand and both are completely indistinguishable from each other. The clock has another mechanism where it will display the correct time whenever Mr. X looks at it, but then it freezes completely, i.e., he is unable to see the movement of any of the hands. This clock is still (almost) perfectly usable. But, there are only a few specific times in a day where he is unable to look at the clock and be sure of the right time. If we assume that a day starts from 12 midnight to next 12 midnight, both inclusive. How many times in a day, he will not be able to figure out the correct time?
Arjun and Bheem are standing at point A on a circular track with circumference 300 m. Cherry is standing at point B which is diametrically opposite point A on the track. All three of them start running simultaneously on the track; Arjun and Cherry run in clockwise direction at 3 m/s and 4 m/s respectively while Bheem runs in anticlockwise direction at 5 m/s. After how much time (in seconds) from the start will Cherry be equidistant from Arjun and Bheem for the first time?
can anyone guide me from where can i get good questions of geometry for practice ?
out of 14 members A-N 10 are to be selected to form a group. How many groups can be formed? IN how many groups would A be selected.
Hey guys, what is the number of diagonals that pass through the centre of a regular polygon with odd number of sides n?
How many times would zero be used while writing all the natural numbers from 1-63 in the binary system?
The length of the minute hand of analogclock is equal to the length of the hour hand and both are completely indistinguishable from each other. The clock has another mechanism where it will display the correct time whenever Mr. X looks at it, but then it freezes completely, i.e., he is unable to see the movement of any of the hands. This clock is still (almost) perfectly usable. But, there are only a few specific times in a day where he is unable to look at the clock and be sure of the right time. If we assume that a day starts from 12 midnight to next 12 midnight, both inclusive. How many times in a day, he will not be able to figure out the correct time?
A sheet of paper was in the form of a right – angled triangle. A line was drawn on the sheet parallel to one of the perpendicular sides of the triangle such that the line touched the other two sides of the triangle. A cut was made along this line. The smaller right – angle triangle produced had a perimeter which was 45% less than that of the original and an area 29.295 sq. inches less than that of the original. Find the area of the original triangle (in sq. inches).