A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 6 : 7 : 8 : 9 : 10. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is
Correct Answer : C
Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20 kg of fresh grapes
Rajesh went on a 20-mile test drive on his new Honda. He started with a certain speed. After covering each mile. he decreased his speed by 2S%. If he took 8· minutes 6 seconds to cover the first 4 miles, find the time he would take to cover the next 4 miles.
If a cube of maximum possible volume is cut off from a solid sphere of diameter d, then the volume of the remaining waste material of the sphere would be equal to