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രാജുവിന് ഒരു പരീക്ഷക്ക് 455 മാർക്ക് കിട്ടി . ഇത് ആകെ മാർക്കിന്റെ 91% ആയാൽ ആകെ മാർക്ക് എത്ര ?
ഒരു നാണയം 16 തവണ കറക്കുന്നു . കിട്ടുന്ന തലയുടെ എണ്ണത്തിന്റെ മാനകവ്യതിയാനം കാണുക.
ഒരു ബൈനോമിയൽ വിതരണത്തിന്റെ മാധ്യം 6 ഉം വ്യതിയാനം 5 ഉം ആണ്. p(x=1) കണക്കാക്കുക.
52 ചീട്ടുകളുള്ള ഒരു പാക്കറ്റിൽ നിന്നും ഓരോന്നായി 5 ചീട്ടുകൾ എടുക്കുന്നു. എടുക്കുന്ന ചീട്ട് തിരികെ വയ്ക്കുന്നു എന്ന് കരുതുക. എങ്കിൽ 3 ചീട്ടുകളി ഹൃദയ ചിഹ്നമുള്ള ചീട്ടുകൾ ആകാനുള്ള സംഭവ്യത കാണുക .
ഒരു നാണയം 5 തവണ കാരക്കുന്ന്. കൃത്യം 2 പ്രാവശ്യം തലകൾ ലഭിക്കാനുള്ള സംഭവ്യത ?
ഒരു ചോദ്യ പേപ്പറിൽ 5 ചോദ്യങ്ങളുണ്ട്. ഓരോ ചോദ്യത്തിനും 4 ഉത്തരങ്ങളാണ് ഉള്ളത്. അതിൽ ഓരോ ഉത്തരം വീതം ശരിയാണ്. ഒരാൾ ഉത്തരങ്ങൾ ഊഹിച്ച് എഴുതിയാൽ രണ്ടോ മൂന്നോ ഉത്തരങ്ങൾ ശരിയാവാനുള്ള സംഭവ്യത ?
ഒരു ചോദ്യ പേപ്പറിൽ 5 ചോദ്യങ്ങളുണ്ട്. ഓരോ ചോദ്യത്തിനും 4 ഉത്തരങ്ങളാണ് ഉള്ളത്. അതിൽ ഓരോ ഉത്തരം വീതം ശരിയാണ്. ഒരാൾ ഉത്തരങ്ങൾ ഊഹിച്ച് എഴുതിയാൽ രണ്ട് ഉത്തരങ്ങൾ ശരിയാവാനുള്ള സംഭവ്യത ?
n ഉം p യും പരാമീറ്ററുകളായ ഒരു ബൈനോമിയൽ വിതരണത്തിന്റെ മാനകവ്യതിയാനം =
n ഉം p യും പരാമീറ്ററുകളായ ഒരു ബൈനോമിയൽ വിതരണത്തിന്റെ വ്യതിയാനം =
n ഉം p യും പരാമീറ്ററുകളായ ഒരു ബൈനോമിയൽ വിതരണത്തിന്റെ മാധ്യം =
x∽U(-3,3) , P(x > k)=1/3 ആണെങ്കിൽ k എത്ര ?
വേറിട്ട ഏക സമാന വിതരണത്തിന്റെ വ്യതിയാനം =
വേറിട്ട ഏക സമാന വിതരണത്തിന്റെ മാധ്യം =
Two trains, one 125 metres and the other 375 metres long are running in opposite directions on parallel tracks, at the speed of 81 km/hr and 63 km/hr respectively. How much time will they take to cross each other?
To travel 600 km, train A takes 2 hours more than train B. If the speed of train B is doubled, then, train B takes 4 hours less than train A. The speed (in km/hr) of train A and train B, respectively?
Two trains are moving in the same direction at 65 km/hr and 45 km/hr. respectively. The faster train crosses a man in the slower train in 18 seconds. What is the length of the faster train?
Two trains of 210 meters take 10 secs and 10.5 secs respectively to cross a pole. At what time will they cross each other travelling in opposite directions?
The length of a train is 200 metres. If the speed of the train is 15 m/s, then how much time (in seconds) will it take to cross a bridge 520 metres long?
A train having length 330 meters takes 11 second to cross a 550 meters long bridge. How much time will the train take to cross a 570 meters long bridge?
A 220 metre long train is running at a speed of 54 kilometre per hour. In what time will it pass a man who is moving in the opposite direction of the train at speed of 12 kilometre per hour?
x∽U(a,b) എന്ന ഏക സമാന വിതരണത്തിന്റെ മാനക വ്യതിയാനം =
A man walking at 5 km/hour noticed that a 225 m long train coming in the opposite direction crossed him in 9 seconds. The speed of the train is:
Two trains are running in opposite directions. They cross a man standing on a platform in 28 seconds and 10 seconds. respectively. They cross each other in 24 seconds. What is the ratio of their speeds?
x∽U(a,b) എന്ന ഏക സമാന വിതരണത്തിന്റെ വ്യതിയാനം =
The speed of train A is x km/ hr crosses 120 m platform in 16 seconds and the speed of train B is 108 km/hr it crosses the same platform in 40/3 seconds. If the length of the train A and B are the same, find the value of x.
The distance between the places H and O is D units. The average speed that gets a person from H to O in a stipulated time is S units. He takes 20 minutes more time than usual if he travels at 60 km/h, and reaches 44 minutes early if he travels at 75 km/h. The sum of the numerical values of D and S is:
x∽U(a,b) എന്ന ഏക സമാന വിതരണത്തിന്റെ മാധ്യം =
Ravi starts for his school from his house on his cycle at 8:20 a.m. If he runs his cycle at a speed of 10 km/h, he reaches his school 8 minutes late, and if he drives the cycle at a speed of 16 km/h, he reaches his school 10 minutes early. The school starts at:
A person travelled 120 km by steamer, 450 km by train and 60 km by horse. It took him 13 hours 30 minutes. If the speed of the train is 3 times that of the horse and 1.5 times that of the steamer, then what is the speed (in km/h) of the steamer?

Two trians X and Y start at the same time, X from station A to B and Y from B to A. After passing each other, X and Y take 8258\frac{2}{5} hours and 4274\frac{2}{7} hours, respectively, to reach their respective destinations. If the speed of X is 50 km/h, then what is the speed (in km/h) of Y?

A person travelled a distance of 60 km and then returned to the starting point. The time taken by him for the return journey was 12\frac{1}{2} hour more than the time taken for the outward journey, and the speed during the return journey was 10 km/h less than that during the outward journey. His speed during the outward journey (in km/h) was:

A thief noticing a policeman from a distance of 500 metres starts running at a speed of 8 km/h. The policeman chased him with a speed of 11 km/h. What is the distance run by the thief before he was caught? (Rounded off to two decimal places, if required)
Two cars A and B starting at the same time meet each other after t hours in opposite directions and reach their destination after 5 hours and 6 hours respectively after the meeting. If the speed of car A is 55 km/h, then what will be the speed of car B?
Two person P and Q are 844 m apart. The both start cycling simultaneously in the same direction with speeds of 12 m/s and 8 m/s, respectively, In how much time will P overtake Q?
In a circular race of 4225 m, X and Y start from the same point and at the same time at speeds of 54 km/h and 63 km/h. When will they meet again for the first time on the track when they are running in the opposite direction?
In covering a distance of 30 km, Amit takes 2 hours more than Sameer. If Amit doubles his speed, he will take 1 hour less than Sameer if Sameer does not change his speed of travel. Amit's original speed is ___________.
x∽U(-3,3) , P(|x-2|<2) =
x∽U(0,10) എങ്കിൽ P(3
X ∽ U(-a,a)യും p(x≥1)=1/3 ആണെങ്കിൽ a കണ്ടുപിടിക്കുക.

താഴെ തന്നിരിക്കുന്ന അനിയത ചരത്തിന്ടെ മാധ്യം കാണുക.

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A thief is noticed by a policeman from a distance of 380 m. The thief starts running and the policeman chases him. The thief and policeman run at the speed of 25 ,m/sec and 30 m/sec respectively. What is the time taken by the policeman to catch the thief?
Ram is at A and Shyam is at B. They proceed towards each other simultaneously. After meeting each other in the way, Ram takes 2 h to reach B and Shyam takes 8 h to reach A. If the speed of Ram is 40 km/h, the speed of Shyam is:
A thief is seen by a policeman at a distance of x meters when the policeman starts chasing him with a speed of 75 km/h, the thief also starts running at the same time with a speed of 45 km/h. If the thief had run 900 m (after being seen by the policeman) before being caught by the policeman, what would be the value of x?
A policeman saw a thief from a distance of 68 meters. The thief starts running away and the policeman chases him. The thief and the policeman run at the speed of 4 m/s and 9 m/s respectively. How long did it take for the policeman to catch the thief?
A cyclist was moving with a speed 20 km/hr. Behind the cyclist at a distance of 100 km was a biker moving in the same direction with a speed of 40km/hr. After what time will the biker over take the cyclist?
A and B started simultaneously towards each other from places X and Y, respectively. After meeting at point M on the way, A and B took 3.2 hours and 7.2 hours, to reach Y and X, respectively. Then how much time (in hours) they take to reach point M?
A person travels a distance of 300 km and then returns to the starting point. The time taken by him for the outward journey is 5 hours more than the time taken for the return journey. If he returns at a speed of 10 km / h more than the speed of going, what is the average speed (in km / h) for the entire journey?
A delivery boy started from his office at 10 a.m. to deliver an article. He rode his scooter at a speed of 32 km / h. He delivered the article and waited for 15 minutes to get the payment. After the payment was made, he reached his office at 11:25 a.m., travelling at a speed of 24 km / h. Find the total distance travelled by the boy.

Amita travels from her house at 3123\frac{1}{2} km/h and reaches her school 6 minutes late. The next day she travels at 4124\frac{1}{2} km/h and reaches her school 10 minutes early. What is the distance between her house and the school?

A and B start moving towards each other from places X and Y, respectively, at the same time on the same day. The speed of A is 20% more than that of B. After meeting on the way, A and B take p hours and 7157\frac{1}{5} hours, respectively, to reach Y and X, respectively. What is the value of p?