Quicker Method: Here, no need to caculate the % mark obtained by each student in Maths and Hindi together. Just check which two students have secured the least marks in Maths and Hindi together. Therefore, our answer is Satya

Maximum percentage difference in the marks obtained means: subtract the student's marks who secured the minimum marks to the one who secured maximum marks. So, req. % = $135-72 \over 150$ $\times$100 = 42%

Letters of the word 'GINGER' arranged in such a way that all the vowels come together. Find out the total number of ways for making such an arrangement.

16 men can do 50% of a piece of work in 10 days. 10 women can do 75% of the same work in 15 days. Then in how many days can 80% of the same work be done by 8 men and 5 women?

A passenger train covers the distance between stations X and Y 50 minutes faster than a goods train. Find this distance if the average speed of the passenger train is 60 kmph and that of goods train 20 kmph.

Total age of Ram and Shyam is 15 years more than that of Shyam and Mohan. While the average age of Ram, Shyam and Mohan is equal to that of Ram and Shyam. Then what is the difference between the ages of Ram and Shyam?

Pipe A usually fills a tank in 2 hours. On accunt of a leak at the bottom of the tank, it takes pipe A 30 minutes more to fill the tank. How long will the leak take to empty a full tank if pipe A is shut?

Study the following graphs and informations carefully to answer these questions.

Which of the following can be inferred from the table and graph?

(a) Half of the total body weight is that of the bones and blood. (b) About 10% of the total body weight is blood. (c) The weight of blood is the average adult is half the weight of the bones.