The maximum marks were 100 and no student obtained full marks. A’s marks were just higher than that of B, whose marks are perfect cube. Only two students got higher marks than B. With the first hint it is clear that even the person securing highest marks did not get 100 marks. With respect to second and third hints it is clear that B received the third highest marks and A received the second highest marks. The possible marks for B are 8, 27 and 64. The difference between the marks of C and B is 22. C’s marks are in even number. With the given hints it is clear that B’s marks are 64, only then second hint would get satisfied. C’s marks could be 22 less than that of B or more than. F received higher marks than only D, who received 23 marks. E’s marks are half of the marks secured by C. With respect to the first hint it is clear that D received the lowest and F received the second lowest marks. E’s marks were less than that of C and we know that A and B received second and third highest marks respectively. __ > A > B > E > F > D Thus the only left person C must have got the highest marks. With this we can say that Case-1 fails. F’s marks were 7 more than the difference between the marks secured by E and D. The sum of the marks secured by all the students was 320. As per first hint, the marks secured by F are 27. At present the sum of marks obtained by all the students except A is 243. So the marks obtained by A is 320 – 243 = 77.
Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 18 km/h a...
The combined speeds of boats 'P' and 'Q' in still water amount to 52 km/hr. The current's speed affecting boat 'P' is 25% greater than that affecting bo...
A boat can cover a distance of 210 km downstream with the current in 5 hours. It takes an additional 2.5 hours to return the same...
Motor boat covers a certain distance downstream in a river in 20 hours. It covers the same distance upstream in 30 hours. If the speed of the water is 1...
The downstream speed of a boat is 8 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
The speed of current is 18 km/hr. If the speed of the boat in still water had been 7 km/hr more than the original speed, then it would take 8 hours to c...
A person can swim at the rate of five kilometers per hour in still water. The time taken by him to swim a certain distance downstream is 3 times the tim...
A motor boat covers a certain distance downstream in a river in 4 hours. It covers the same distance upstream in 4 hours and 30 minutes. If the speed of...
Speed of current is equal to 25% of speed of boat in still water. If the boat takes 14 hours to cover 140 km in still water, then find the time taken by...
A boat takes 5 hours to cover 190 km upstream and 8 hours to cover 416 km downstream. Find the time taken by the boat to cover 528 km upstream and 540 k...