Ramesh and Suresh are running on a circular track of length 1200m in opposite direction. everytime they meet, they exchange their speed as well as directions. what is the shortest distance btw their 13th and 23rd meeting points, if the ratio of their speeds is 1:5?a) 200mb)400mc) 800md) 1000mPlz quote me
Since ramesh and suresh are exchanging both speed and directions it could be analysed as ramesh is moving in the same direction with a speed of say x and suresh in the opposite direction with a speed of 5x.
When they will meet for the first time ramesh has covered (1200/6x)*x=200m.After covering every 200m ramesh will meet suresh.
So there will be in total 6 points on the circumference where they will be meeting.
Take any one point as the reference point
13th meeting will occur at 2nd point and 23rd will occur on 5th point, so distance between them will be 200+200=400m
OA: 52In three distinct regular polygons, it is known that the measure of the internal angle of one regular polygon exceeds the measure of the internal angle of the other two regular polygons by 15째 and 27째 respectively. Furthermore, the sum of the measures of the external angles of all the three regular polygons is 177째. What is the sum of the number of sides of all these three regular polygons ?
Sunil goes to small city in Europe on vacation, where he enjoys walking along the streets in the afternoon. He observes that there are 6 parallel roads running East - West and 5 parallel roads running North-South in the city. In order to observe the landmarks in the city, he takes different routes every time he goes out. He also observed that the distance between every consecutive pair of roads is equal. The number of shortest possible routes that Sunil can take to travel from one corner of the city to the other diagonal end is a) 130 b)124 c) 126 d) 128
Sunil goes to small city in Europe on vacation, where he enjoys walking along the streets in the afternoon. He observes that there are 6 parallel roads running East - West and 5 parallel roads running North-South in the city. In order to observe the landmarks in the city, he takes different routes every time he goes out. He also observed that the distance between every consecutive pair of roads is equal. The number of shortest possible routes that Sunil can take to travel from one corner of the city to the other diagonal end is a) 130 b)124 c) 126 d) 128 Plz share ur approach as well..thanks in advance.
it will be 126
simply 9c5
9!/4! 5! = 126
actually see it like to travel to opposite point of a diAGnol no matter he always has to travel 5 verticals and 4 horizontals. as all vertcal paths are same and all horizontal paths are same too arranging them
OA : 2Q>Three distinct numbers are randomly selected from the first 20 natural numbers. Find the probability that the selected numbers are in a geometric progression having common ratio greater than 1.
here i am getting 15/20c3
series
1 2 4
1 3 6
1 4 8
1 5 10
1 6 12
1 7 14
1 8 16
1 9 18
1 10 20
2 4 8
2 6 18
3 6 12
4 6 9
4 8 16
5 10 20
how come did u posted answer as 11/ 20c3 , is the common ratio an integer??
When Sunil will be as old as his father is at present, Sunil will be five times as old as his son is at present. Also, by then Sunil €™s son will be six years older than the age of Sunil at present. The sum of the ages of Sunil €™s father and Sunil is 85 years at present. What is the sum of the ages of Sunil €™s son and Sunil at present?
78 identical cubes each with 2 cm edge are joined together to form a cuboid. If the perimeter of the base of the cuboid is 64 cm, then the number of cubes along the height of the cuboid isPS: @ChirpiBird , kaun si movie dekhi aaj ?
inclusion-exclusion:Total pool : 5+3= 8 characters are there..if it starts of with a digit:- 3* 6*5*4*5 =1800 ways( filling the fifth character is given precedence)If it starts of with a alphabet:-Similar will be the case if we create a password that start of with a albhabet and ends in a digit. ->1800 ways. Now, exclude the violating cases, we cant create p/w with 4 digits as we are having only 3 with us . so we will anyway have 2 albhabetss in the p/w Consider the cases we have created pws with 4 albhabets. 6*4*3*2* 5= 720 ways.in total 3600-720 =2880ways?
bhai i am not getting this solution , when i solved this question i got 3600 as my answer
why r u subtracting 720?
a password with 4 letters and 1 number is fairly possible
bhai i am not getting this solution , when i solved this question i got 3600 as my answerwhy r u subtracting 720?a password with 4 letters and 1 number is fairly possiblewhy r u subtracting that part from the rest??????
Mandeep has to create a password having 5 distinct characters using at least 2 digits (from 7 to 9) and at least 2 English vowels (from A, E, I, O and U). Thats y.
Mandeep has to create a password having 5 distinct characters using at least 2 digits (from 7 to 9) and at least 2 English vowels (from A, E, I, O and U). Thats y.
oooooo i guess i missed the atleast 2 digit part 😞 thanks 4 making me remember it :)
One day u will be awarded Noble prize for Environment (if this is ever instituted) for saving trees (paper) as u solve most of the q's orally ,P is the product of first 30 multiples of 30. N is the total number of factors of P. In how many ways N can be written as the product of two natural numbers such that the HCF of these two natural numbers is 19?
A Man standing ona boat south of a light house observes his shadow to be 24 m long as measured at the sea level. on sailing 300 m eastwards , he finds his shadow as 30 m long, measured in a similar manner. the ht of the man is 6 m abve sea leavel. what is the ht of light house?
A Man standing ona boat south of a light house observes his shadow to be 24 m long as measured at the sea level. on sailing 300 m eastwards , he finds his shadow as 30 m long, measured in a similar manner. the ht of the man is 6 m abve sea leavel. what is the ht of light house?Puys dosto.....answer figure ka diagram batao
Is Height of Light house 100 m ? If yes then I will attach the solution
A Man standing ona boat south of a light house observes his shadow to be 24 m long as measured at the sea level. on sailing 300 m eastwards , he finds his shadow as 30 m long, measured in a similar manner. the ht of the man is 6 m abve sea leavel. what is the ht of light house?Puys dosto.....answer figure ka diagram
