Find the least number of students in an exam so that thepercentage ofsuccessful students should be 76.8%:(a) 500(b) 250(c) 125(d) 1000 Aman sends a certain quantity of rice for 30 girls in a hostel. Oneday somegirls were absent. Therefore, the quantity of rice was spentin the ratio of 6: 5.How many girls were present on […]