Interested to Buy Any Domain ? << Click Here >> for more details...
If A driver drives a car four times a lap 10,20 30,60 kmph what is his average speed.
- 1 Answers
- 2758 Views
- IBM, Mecon, I also Faced
- E-Mail Answers
Answer / deepak bhengra
Average Speed = (Total Distance)/(Total Time)
suppose the distance of one lap is = x km
then, T1 = x/10 ; T2 = x/20 ; T3 = x/30 ; T4 = x/60
Total Time, T = T1+T2+T3+T4 = x/10 + x/20 + x/30 +x/60 = 12x/60 = x/5
Now, Total Distance = D1+D2+D3+D4 = x+x+x+x = 4x
And, Average Speed = (4x)/(x/5) = 4x*5/x
= 20 kmph.
| Is This Answer Correct ? | 0 Yes | 1 No |
A student appeared in 3 papers of Maths, English and Science. The maximum marks of the three papers are in the ratio of 3 : 2 : 5 and total of 3 papers is 500. He obtained 50% in Maths, 68% in English ,and 73% overall. What is the percentage marks he scored in Science?
9 Answers Accenture, Infosys, Mannar Company,
A boy has Rs 3 in total. If he wins, he gains 1 Rupee and if he looses, he has to loose 1 Rupee. The boy may lose only 5 times in the game and if he earns 5 Rs, he has to quit the game. Find the number of ways of the possibilities.
The ratio between two numbers is 5:7 and their product is 560. What is the difference between these two numbers?
If it takes five minutes to boil one potato, how long will it take to boil four potatoes?
A small town's industries have a total turnover of Rs. 25,00,000. If the town council plans to raise Rs.170,000 through octroi levy, what % levy should it charge on the industries?
Find the longest palendrom in a string? Example Input: abfgerccdedccfgfer Output: ccdedcc i want a solution in C/C++ language
22. 5 children were born on the same day but on different years in b/w 1999 - 2003 . Abhya is younger than dinesh and frahan vaskar is naughtiest of all. girish is older than dinesh and farhan. If Abhay is born in 2002, then in which year farhan is born : 1999-2002 2000- 2001 1999, 2000, 2001 2003 23. Order in which childrens are born ? B,D,G,F,A G,D,B,F,A G,A,B,D,F F,B,D,A,G
A batsman scored 120 runs including 16 fours and 2 sixes. What percentage of his total score did he make by running between the wickets?
solve (7x+4y)/(x-2y) if (x/2y)=(3/2)
Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved
A ship is away from the shore by 180 miles.A plane is travelling at 10 times speed of the ship.How long from the shore will they meet?
Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X?
0 Answers BPCL Bharat Petroleum, Sonata,
English 
